Paris

ab4ce8cfda457614550f6a706700bf54.jpg

Serbia's Novak Djokovic returns the ball during the second round match of the French Open tennis tournament against France's Jeremy Chardy at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/David Vincent)

2673e8c5da377514550f6a70670097f4.jpg

Former tennis ace Boris Becker takes an image with his mobile phone during the second round match of the French Open tennis tournament between Serbia's Novak Djokovic and France's Jeremy Chardy at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/David Vincent)

002b8775da977714550f6a7067001631.jpg

France's Alize Cornet returns the ball to Taylor Townsend, of the U.S, during the second round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/Darko Vojinovic)

1b58ba12db007914550f6a7067006f90.jpg

Russia's Maria Sharapova returns the ball to Bulgaria's Tsvetana Pironkova during the second round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/David Vincent)

c6a180c7d9cb7314550f6a70670088e3.jpg

Venus Williams of the U.S. leaves after losing her second round match of the French Open tennis tournament in three sets against Slovakia's Anna Schmiedlova at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/David Vincent)

9963de9fd9ce7314550f6a7067003414.jpg

Venus Williams of the U.S. returns the ball during the second round match of the French Open tennis tournament against Slovakia's Anna Schmiedlova at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/David Vincent)

6d3ef0b2d9e77414550f6a70670071dc.jpg

Serena Williams of the U.S. returns the ball during the second round match of the French Open tennis tournament against Spain's Garbine Muguruza at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/Darko Vojinovic)

459af3fcd9ff7414550f6a706700c01e.jpg

Spain's Garbine Muguruza celebrates winning the second round match of the French Open tennis tournament defeating Serena Williams of the U.S. in two sets 6-2, 6-2, at the Roland Garros stadium, in Paris, France, Wednesday, May 28, 2014. (AP Photo/Darko Vojinovic)