Spain's Rafael Nadal returns the ball to Argentina's Federico Delbonis during a VTR Open tennis match in Vina del Mar, Chile, Wednesday, Feb. 6, 2013. Nadal, whose knee problem has ling

 

              Spain
Spain's Rafael Nadal returns the ball to Argentina's Federico Delbonis during a VTR Open tennis match in Vina del Mar, Chile, Wednesday, Feb. 6, 2013. Nadal, whose knee problem has lingered despite on-going therapy, marked his return to the tour with a doubles victory Tuesday alongside Juan Monaco at a little-known clay court tournament in Chile. (AP Photo/Luis Hidalgo)
Tags: Monaco