Real Madrid's Angel Di Maria from Argentina lies on the grass during a Spanish La Liga soccer match between Real Madrid and Valencia at the Santiago Bernabeu stadium in Madrid, Spain, Sunday, May 4, 2014 . (AP Photo/Daniel Ochoa de Olza)
Jo-Wilfried Tsonga from France celebrates after winning a point during a Madrid Open tennis tournament match against Edouard Roger-Vasselin from France, in Madrid, Spain, Monday, May 5, 2014. (AP Photo/Andres Kudacki)
Jo-Wilfried Tsonga from France returns the ball during a Madrid Open tennis tournament match against Edouard Roger-Vasselin from France, in Madrid, Spain, Monday, May 5, 2014. (AP Photo/Andres Kudacki)
Agnieszka Radwanska from Poland returns the ball during a Madrid Open tennis tournament match against Eugenie Bouchard from Canada, in Madrid, Spain, Monday, May 5, 2014. (AP Photo/Andres Kudacki)
Agnieszka Radwanska from Poland serves during a Madrid Open tennis tournament match against Eugenie Bouchard from Canada, in Madrid, Spain, Monday, May 5, 2014. (AP Photo/Andres Kudacki)
Ivan Dodig from Croatia serves during a Madrid Open tennis tournament match against Kei Nishikori from Japan, in Madrid, Spain, Monday, May 5, 2014. (AP Photo/Andres Kudacki)
Na Li from China serves during a Madrid Open tennis tournament match against Kirsten Flipkens from Belgium, in Madrid, Spain, Monday, May 5, 2014. (AP Photo/Andres Kudacki)