Gallery: 
 

AP Marin Cilic of Croatia eyes the ball during his match against Juan Martin Del Potro of Argentina at the Sony Ericsson Open tennis tournament, Monday, - Photo

Marin Cilic of Croatia eyes the ball during his match against Juan Martin Del Potro of Argentina at the Sony Ericsson Open tennis tournament, Monday,

Monday March 26, 11:48 PM
Marin Cilic of Croatia eyes the ball during his match against Juan Martin Del Potro of Argentina at the Sony Ericsson Open tennis tournament, Monday, March 26, 2012, in Key Biscayne, Fla. (AP Photo/Lynne Sladky)