Defending champion Spain's Rafael Nadal returns the ball to Italy's Simone Bolelli during their first round match in the French Open at the Roland Garros stadium in Paris. (AP Photo)
Defending champion Spain's Rafael Nadal returns the ball to Italy's Simone Bolelli during their first round match in the French Open at the Roland Garros stadium in Paris. (AP Photo)
USA's Serena Williams reacts shortly before losing to France's Virginie Razzano during their first round match in the French Open at the Roland Garros stadium in Paris. (AP Photo)
Virginie Razzano of France celebrates defeating Serena Williams of the U.S. after the ball went out in the first round match at the French Open in Roland Garros stadium in Paris. Razzano won in three sets, 6-4, 6-7. 3-6. (AP Photo)
Maria Sharapova of Russia returns in her first round match against Alexandra Cadantu of Romania at the French Open in Roland Garros stadium in Paris. Sharapova won in two sets 6-0, 6-0. (AP Photo)
Caroline Wozniacki of Denmark returns in her first round match against Eleni Danilidou of Greece at the French Open in Roland Garros stadium in Paris. (AP Photo)
Czech Republic's Petra Kvitova returns the ball to Australia's Ashleigh Barty during their first round match in the French Open at the Roland Garros stadium in Paris. (AP Photo)
James Blake of the US returns in his first round match against Mikhail Youzhny of Russia at the French Open in Roland Garros stadium in Paris. (AP Photo)
Mikhail Youzhny of Russia returns in his first round match against James Blake of the U.S. at the French Open in Roland Garros stadium in Paris. (AP Photo)
David Ferrer of Spain returns in his first round match against Lukas Lacko of Slovakia at the French Open in Roland Garros stadium in Paris. (AP Photo)
