France's Kristina Mladenovic reacts as she defeats China's Li Na during the first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/David Vincent)
France's Kristina Mladenovic reacts as she defeats China's Li Na during the first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/David Vincent)
Chinas Li Na returns the ball to France's Kristina Mladenovic during their first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/David Vincent)
Chinas Li Na returns the ball to France's Kristina Mladenovic during their first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/David Vincent)
Chinas Li Na returns the ball to France's Kristina Mladenovic during their first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/David Vincent)
Japan's Kimiko Date-Krumm serves the ball to Russia's Anastasia Pavlyuchenkova during the first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/Darko Vojinovic)
Japan's Kimiko Date-Krumm returns the ball to Russia's Anastasia Pavlyuchenkova during the first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/Darko Vojinovic)
Chinas Li Na returns the ball to France's Kristina Mladenovic during their first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/David Vincent)
Australia's Leyton Hewitt returns the ball during the first round match of the French Open tennis tournament against Argentina's Carlos Berlocq at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/Michel Euler)
Japan's Kimiko Date-Krumm returns the ball to Russia's Anastasia Pavlyuchenkova during the first round match of the French Open tennis tournament at the Roland Garros stadium, in Paris, France, Tuesday, May 27, 2014. (AP Photo/Darko Vojinovic)