jueves 7 de agosto, 6:09 PM WESTWOOD, CA - AUGUST 07: Juan Martin Del Potro of Argentina reaches for the ball while taking on Andrea Stoppini of Italy during day four of the Countrywide Classic at the Los Angeles Tennis Center-UCLA on August 7, 2008 in Westwood, California. Del Porto defeated Stoppini 6-4, 6-2. (Photo by Jonathan Moore/Getty Images)