Australia's Samantha Stosur returns the ball to Russia's Maria Sharapova during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Sunday, June 1, 2014. (AP Photo/Darko Vojinovic)
Russia's Maria Sharapova returns the ball to Australia's Samantha Stosur during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Sunday, June 1, 2014. (AP Photo/Darko Vojinovic)
Russia's Maria Sharapova reacts as she plays Australia's Samantha Stosur during their fourth round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Sunday, June 1, 2014. (AP Photo/Darko Vojinovic)