Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. celebrates winning the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. celebrates winning the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. celebrates winning the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. in action during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 General view of the match between Germany's Julia Goerges and Alison Riske of the U.S. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Germany's Julia Goerges in action during the match against Alison Riske of the U.S. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 - Alison Riske of the U.S. reacts during the match against Germany’s Julia Goerges. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 - Alison Riske of the U.S. in action during the match against Germany’s Julia Goerges. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Germany's Julia Goerges in action during the match against Alison Riske of the U.S. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Germany's Julia Goerges celebrates during the match against Alison Riske of the U.S. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Germany's Julia Goerges reacts during the match against Alison Riske of the U.S. REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. in action during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Third Round - Melbourne Park, Melbourne, Australia - January 24, 2020 Alison Riske of the U.S. in action during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges reacts during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges reacts during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - A line umpire watches the match between Germany’s Julia Goerges and Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic reacts during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges reacts during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges reacts during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges reacts during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Croatia’s Petra Martic in action during the match against Germany’s Julia Goerges. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - Second Round - Melbourne Park, Melbourne, Australia - January 22, 2020 - Germany’s Julia Goerges in action during the match against Croatia’s Petra Martic. REUTERS/Kim Hong-Ji 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges celebrates winning the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges celebrates during the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Slovakia's Viktoria Kuzmova in action during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges celebrates during the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges in action during the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Slovakia's Viktoria Kuzmova in action during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges in action during the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Slovakia's Viktoria Kuzmova in action during the match against Germany's Julia Goerges REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges during the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Australian Open - First Round - Melbourne Park, Melbourne, Australia - January 20, 2020 Germany's Julia Goerges in action during the match against Slovakia's Viktoria Kuzmova REUTERS/Ciro De Luca 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. in action during her third round match against Germany's Julia Goerges REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. in action during her third round match against Germany's Julia Goerges REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. celebrates winning her third round match against Germany's Julia Goerges REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. celebrates winning her third round match against Germany's Julia Goerges REUTERS/Toby Melville 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. celebrates winning her third round match against Germany's Julia Goerges REUTERS/Toby Melville 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. celebrates winning her third round match against Germany's Julia Goerges REUTERS/Toby Melville 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. celebrates winning her third round match against Germany's Julia Goerges REUTERS/Toby Melville 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. in action during her third round match against Germany's Julia Goerges REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. in action during her third round match against Germany's Julia Goerges REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. in action during her third round match against Germany's Julia Goerges REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Serena Williams of the U.S. in action during her third round match against Germany's Julia Goerges REUTERS/Toby Melville 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Germany's Julia Goerges in action during her third round match against Serena Williams of the U.S. REUTERS/Carl Recine 

Tennis - Wimbledon - All England Lawn Tennis and Croquet Club, London, Britain - July 6, 2019 Germany's Julia Goerges reacts during her third round match against Serena Williams of the U.S. REUTERS/Carl Recine