21 or 2/2? Nadal, Medvedev chase history at Australian Open


              Daniil Medvedev, left, of Russia gestures as he argues with chair umpire Jaume Campistol during a break in his semifinal against Stefanos Tsitsipas of Greece at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022. (AP Photo/Andy Brownbill)
            
              Daniil Medvedev of Russia gestures as he argues with chair umpire Jaume Campistol during a break in his semifinal against Stefanos Tsitsipas of Greece at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022. (AP Photo/Simon Baker)
            
              Daniil Medvedev, left, of Russia is congratulated by Stefanos Tsitsipas of Greece following their semifinal match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022. (AP Photo/Simon Baker)
            
              Matteo Berrettini of Italy waves as he leaves Rod Laver Arena after losing his semifinal to Rafael Nadal of Spain at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022.(AP Photo/Andy Brownbill)
            
              Daniil Medvedev of Russia serves to Stefanos Tsitsipas of Greece during their semifinal match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022. (AP Photo/Simon Baker)
            
              Rafael Nadal of Spain celebrates after defeating Matteo Berrettini of Italy in their semifinal match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022.(AP Photo/Andy Brownbill)
            
              Rafael Nadal of Spain is watched by fans during a practice session at Melbourne Park at the Australian Open tennis championships in Melbourne, Australia, Saturday, Jan. 29, 2022. Nadal will play Russia's Daniil Medvedev on Sunday Jan. 30 in the men's singles final. (AP Photo/Mark Baker)
            
              Rafael Nadal of Spain talks with his coach Carlos Moya, right, during a practice session at Melbourne Park at the Australian Open tennis championships in Melbourne, Australia, Saturday, Jan. 29, 2022. Nadal will play Russia's Daniil Medvedev on Sunday Jan. 30 in the men's singles final. (AP Photo/Mark Baker)
            
              Daniil Medvedev of Russia celebrates after defeating Stefanos Tsitsipas of Greece in their semifinal match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022.(AP Photo/Andy Brownbill)
            
              Rafael Nadal of Spain celebrates after defeating Matteo Berrettini of Italy in their semifinal match at the Australian Open tennis championships in Melbourne, Australia, Friday, Jan. 28, 2022. (AP Photo/Tertius Pickard)
21 or 2/2? Nadal, Medvedev chase history at Australian Open