Djokovic, Tsitsipas start Australian Open men’s final


              Novak Djokovic of Serbia, center, celebrates with his team including his mother, Dijana, second left, after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts during a press conference following his loss to Novak Djokovic of Serbia in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Supporters of Novak Djokovic of Serbia react outside Rod Laver Arena following his win over Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, center, celebrates with his team including his mother, Dijana, left, after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic, left, of Serbia holds the Norman Brookes Challenge Cup as he makes a post match speech after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Dijana and Marco Djokovic react as they watch Novak lift the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Stefanos Tsitsipas of Greece gestures after receiving his trophy for runner-up to Novak Djokovic of Serbia in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Mark Baker)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia gestures as he holds the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia reacts as he holds the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, left, shakes hands with Stefanos Tsitsipas of Greece after Djokovic won the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates in the stands with his support team after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia kisses the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, center, celebrates with his team including his mother, Dijana, left, after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic, left, of Serbia holds the Norman Brookes Challenge Cup as he makes a post match speech after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Dijana and Marco Djokovic react as they watch Novak lift the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Stefanos Tsitsipas of Greece gestures after receiving his trophy for runner-up to Novak Djokovic of Serbia in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Mark Baker)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia gestures as he holds the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia reacts as he holds the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, left, shakes hands with Stefanos Tsitsipas of Greece after Djokovic won the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates in the stands with his support team after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia kisses the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia, center, celebrates with his team including his mother, Dijana, left, after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic, left, of Serbia holds the Norman Brookes Challenge Cup as he makes a post match speech after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Dijana and Marco Djokovic react as they watch Novak lift the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023.(AP Photo/Dita Alangkara)
            
              Stefanos Tsitsipas of Greece gestures after receiving his trophy for runner-up to Novak Djokovic of Serbia in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia kisses the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Mark Baker)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia reacts while playing against Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, left, shakes hands with Stefanos Tsitsipas of Greece after Djokovic won the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia gestures as he holds the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia reacts as he holds the Norman Brookes Challenge Cup after defeating Stefanos Tsitsipas of Greece in the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, left, shakes hands with Stefanos Tsitsipas of Greece after Djokovic won the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Mark Baker)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia reacts while playing against Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, left, shakes hands with Stefanos Tsitsipas of Greece after Djokovic won the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Mark Baker)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia reacts while playing against Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia, left, shakes hands with Stefanos Tsitsipas of Greece after Djokovic won the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia celebrates after defeating Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Mark Baker)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia reacts while playing against Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a backhand to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece reacts after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Aaron Favila)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece yells out after losing a point to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia reacts while playing against Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece reacts as he changes ends during his men's singles final match against Novak Djokovic of Serbia at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Stefanos Tsitsipas of Greece takes a drink while playing Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Stefanos Tsitsipas of Greece plays a backhand return to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Stefanos Tsitsipas of Greece plays a backhand return to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              The team box of Novak Djokovic of Serbia, including his mother Dijana Djokovic, center, watch as he plays Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Stefanos Tsitsipas of Greece plays a backhand return to Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              The team box for Stefanos Tsitsipas of Greece, including his father, Apostolos Tsitsipas, bottom left, watch as he plays Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              The team box of Novak Djokovic of Serbia, including his mother Dijana Djokovic, center, watch as he plays Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
            
              Novak Djokovic of Serbia plays a backhand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Novak Djokovic of Serbia plays a forehand return to Stefanos Tsitsipas of Greece during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Ng Han Guan)
            
              Novak Djokovic of Serbia waves as he walks onto Rod Laver Arena, ahead of his match against Stefanos Tsitsipas of Greece in the men's single's final at the Australian Open tennis championship in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Dita Alangkara)
            
              Stefanos Tsitsipas of Greece arrives on court before playing Novak Djokovic of Serbia during the men's singles final at the Australian Open tennis championships in Melbourne, Australia, Sunday, Jan. 29, 2023. (AP Photo/Asanka Brendon Ratnayake)
Djokovic, Tsitsipas start Australian Open men’s final