Andrea Petkovic of Germany returns a backhand to Stefanie Voegele of Switzerland at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2014. REUTERS/Vincent Kessler ... more 
Andrea Petkovic of Germany returns a backhand to Stefanie Voegele of Switzerland at the French Open tennis tournament at the Roland Garros stadium in Paris May 29, 2014. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS) less 
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Reuters | Photo By VINCENT KESSLER / REUTERS
Thu, May 29, 2014 8:59 AM EDT