![Patty Schnyder (R) of Switzerland greets Kim Clijsters of Belgium after their semi-final match at the Champions Challenge tennis tournament in Hong Kong January 5, 2007. REUTERS/Paul Yeung (CHINA Stock Photo - Patty Schnyder (R) of Switzerland greets Kim Clijsters of Belgium after their semi-final match at the Champions Challenge tennis tournament in Hong Kong January 5, 2007. REUTERS/Paul Yeung (CHINA Stock Photo -](https://c8.alamy.com/comp/2E7P52C/patty-schnyder-r-of-switzerland-greets-kim-clijsters-of-belgium-after-their-semi-final-match-at-the-champions-challenge-tennis-tournament-in-hong-kong-january-5-2007-reuterspaul-yeung-china-2E7P52C.jpg)
Patty Schnyder (R) of Switzerland greets Kim Clijsters of Belgium after their semi-final match at the Champions Challenge tennis tournament in Hong Kong January 5, 2007. REUTERS/Paul Yeung (CHINA Stock Photo -
![Kim Clijsters of Belgium returns the ball to Martina Hingis of Switzerland March 27 in their fourth round match at the Ericsson Open. Clijsters lost to top seed Hingis 6-0 6-4. CB/SV Kim Clijsters of Belgium returns the ball to Martina Hingis of Switzerland March 27 in their fourth round match at the Ericsson Open. Clijsters lost to top seed Hingis 6-0 6-4. CB/SV](https://c8.alamy.com/comp/2D5E5M8/kim-clijsters-of-belgium-returns-the-ball-to-martina-hingis-of-switzerland-march-27-in-their-fourth-round-match-at-the-ericsson-open-clijsters-lost-to-top-seed-hingis-6-0-6-4-cbsv-2D5E5M8.jpg)
Kim Clijsters of Belgium returns the ball to Martina Hingis of Switzerland March 27 in their fourth round match at the Ericsson Open. Clijsters lost to top seed Hingis 6-0 6-4. CB/SV
![Kim Clijsters of Belgium in action during her match against Patty Schnyder of Switzerland Stock Photo - Alamy Kim Clijsters of Belgium in action during her match against Patty Schnyder of Switzerland Stock Photo - Alamy](https://c8.alamy.com/comp/GBBMC6/kim-clijsters-of-belgium-in-action-during-her-match-against-patty-GBBMC6.jpg)
Kim Clijsters of Belgium in action during her match against Patty Schnyder of Switzerland Stock Photo - Alamy
![Martina Hingis of Switzerland is kissed by Kim Clijsters of Belgium after their match at the Australian Open tennis tournament in Melbourne January 25, 2006. REUTERS/David Gray Stock Photo - Alamy Martina Hingis of Switzerland is kissed by Kim Clijsters of Belgium after their match at the Australian Open tennis tournament in Melbourne January 25, 2006. REUTERS/David Gray Stock Photo - Alamy](https://c8.alamy.com/comp/2E7KJAD/martina-hingis-of-switzerland-is-kissed-by-kim-clijsters-of-belgium-after-their-match-at-the-australian-open-tennis-tournament-in-melbourne-january-25-2006-reutersdavid-gray-2E7KJAD.jpg)
Martina Hingis of Switzerland is kissed by Kim Clijsters of Belgium after their match at the Australian Open tennis tournament in Melbourne January 25, 2006. REUTERS/David Gray Stock Photo - Alamy
![Roger Federer-Rafael Nadal und Kim Clijster US Open Arthur Ashe Kids Day statt im USTA Billie Jean King National Tennis Stockfotografie - Alamy Roger Federer-Rafael Nadal und Kim Clijster US Open Arthur Ashe Kids Day statt im USTA Billie Jean King National Tennis Stockfotografie - Alamy](https://l450v.alamy.com/450vde/2cpgdw8/roger-federer-der-schweiz-kim-clijsters-belgiens-und-rafael-nadal-aus-spanien-erscheinen-auf-dem-arthur-ashe-kids-day-beim-us-open-tennisturnier-in-new-york-28-august-2010-reutersbrendan-mcdermid-vereinigte-staaten-tags-unterhaltung-sport-tennis-2cpgdw8.jpg)
Roger Federer-Rafael Nadal und Kim Clijster US Open Arthur Ashe Kids Day statt im USTA Billie Jean King National Tennis Stockfotografie - Alamy
![Zweite Saat Kim Clijsters Belgien erreicht, um einen Schuss der Schweiz Patty Schnyder während ihr Halbfinale bei den Australian Open Tennis Championship in Melbourne 29. Januar 2004 wieder. Clijsters gewann das Match Zweite Saat Kim Clijsters Belgien erreicht, um einen Schuss der Schweiz Patty Schnyder während ihr Halbfinale bei den Australian Open Tennis Championship in Melbourne 29. Januar 2004 wieder. Clijsters gewann das Match](https://c8.alamy.com/compde/2d4fk42/zweite-saat-kim-clijsters-belgien-erreicht-um-einen-schuss-der-schweiz-patty-schnyder-wahrend-ihr-halbfinale-bei-den-australian-open-tennis-championship-in-melbourne-29-januar-2004-wieder-clijsters-gewann-das-match-6-2-7-6-reuterstim-wimborne-cptw-2d4fk42.jpg)
Zweite Saat Kim Clijsters Belgien erreicht, um einen Schuss der Schweiz Patty Schnyder während ihr Halbfinale bei den Australian Open Tennis Championship in Melbourne 29. Januar 2004 wieder. Clijsters gewann das Match
![Belgiens Kim Clijsters trifft eine Vorhand zu der Schweiz Martina Hingis während der 2006 Acura Classic Womens Tennis-Turniers in Carlsbad, Kalifornien 4. August 2006. REUTERS/Mike Blake (Vereinigte Staaten Stockfotografie - Alamy Belgiens Kim Clijsters trifft eine Vorhand zu der Schweiz Martina Hingis während der 2006 Acura Classic Womens Tennis-Turniers in Carlsbad, Kalifornien 4. August 2006. REUTERS/Mike Blake (Vereinigte Staaten Stockfotografie - Alamy](https://c8.alamy.com/compde/2e8h2ew/belgiens-kim-clijsters-trifft-eine-vorhand-zu-der-schweiz-martina-hingis-wahrend-der-2006-acura-classic-womens-tennis-turniers-in-carlsbad-kalifornien-4-august-2006-reutersmike-blake-vereinigte-staaten-2e8h2ew.jpg)
Belgiens Kim Clijsters trifft eine Vorhand zu der Schweiz Martina Hingis während der 2006 Acura Classic Womens Tennis-Turniers in Carlsbad, Kalifornien 4. August 2006. REUTERS/Mike Blake (Vereinigte Staaten Stockfotografie - Alamy
![Andy Roddick, Serena Williams, Roger Federer aus der Schweiz und Kim Clijsters aus Belgien während des Arthur Ashe Kindertages im USTA Billie Jean King National Tennis Center, 2012 US Open Championships in Andy Roddick, Serena Williams, Roger Federer aus der Schweiz und Kim Clijsters aus Belgien während des Arthur Ashe Kindertages im USTA Billie Jean King National Tennis Center, 2012 US Open Championships in](https://c8.alamy.com/compde/2e0kh02/andy-roddick-serena-williams-roger-federer-aus-der-schweiz-und-kim-clijsters-aus-belgien-wahrend-des-arthur-ashe-kindertages-im-usta-billie-jean-king-national-tennis-center-2012-us-open-championships-in-new-york-usa-am-25-august-2012-foto-von-corinne-dubreuilabacapresscom-2e0kh02.jpg)
Andy Roddick, Serena Williams, Roger Federer aus der Schweiz und Kim Clijsters aus Belgien während des Arthur Ashe Kindertages im USTA Billie Jean King National Tennis Center, 2012 US Open Championships in
![Kim Clijsters arrives at a ceremony presenting Gustavo Kuerten with his Tennis Hall of Fame ring before the French Open men's final match between Stan Wawrinka of Switzerland and Rafael Nadal of Kim Clijsters arrives at a ceremony presenting Gustavo Kuerten with his Tennis Hall of Fame ring before the French Open men's final match between Stan Wawrinka of Switzerland and Rafael Nadal of](https://c8.alamy.com/comp/TYYYHP/kim-clijsters-arrives-at-a-ceremony-presenting-gustavo-kuerten-with-his-tennis-hall-of-fame-ring-before-the-french-open-mens-final-match-between-stan-wawrinka-of-switzerland-and-rafael-nadal-of-spain-at-roland-garros-in-paris-on-june-11-2017-photo-by-david-silpaupi-TYYYHP.jpg)