Analysis: Teen Slam champ Raducanu still winning, learning


              Iga Swiatek of Poland plays a forehand return to Harriet Dart of Britain during their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP Photo/Hamish Blair)
            
              Leylah Fernandez of Canada plays a backhand return to Maddison Inglis of Australia during their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP Photo/Simon Baker)
            
              Emma Raducanu of Britain plays a forehand return to Sloane Stephens of the U.S. during their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP Photo/Tertius Pickard)
            
              Emma Raducanu, left, of Britain is congratulated by Sloane Stephens of the U.S. after winning their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP Photo/Tertius Pickard)
            
              Emma Raducanu of Britain reacts after defeating Sloane Stephens of the U.S. during their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP Photo/Tertius Pickard)
            
              Emma Raducanu of Britain reacts after winning a point against Sloane Stephens of the U.S. in their first round match at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP Photo/Tertius Pickard)
Analysis: Teen Slam champ Raducanu still winning, learning