Spain's Rafael Nadal celebrates after defeating 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, defeated Delbonis 6-3, 6-2 on Wednesday in the second round of the VTR Open, his first singles match since losing in Wimbledon more than seven months ago. (AP Photo/Luis Hidalgo)The Associated Press
VINA DEL MAR, Chile – Rafael Nadal and Juan Monaco reached the doubles semifinals at the VTR Open with a 6-2, 7-6 (4) victory over Guillaume Ruffin and Filippo Volandri on Thursday.
It was Nadal's third match in three days after being away from the tour for just over seven months with an inflamed left ankle and a stomach virus.
Nadal faces fellow Spaniard Daniel Gimeno-Traver in the singles quarterfinals on Friday.