After Carlos Rivera flied out, De Aza ran down Andy Gonzalez's long fly to the gap in left-center and made a reaching snag at the warning track with his back to the infield.

NPR: Unbeaten Dominicans Win World Baseball Classic 3-0

The eight players in the Masters Cup field are: Nadal, Gasquet, Federer, Fernando Gonzalez, Novak Djokovic, Nikolay Davydenko, Andy Roddick and David Ferrer.

BBC: CHOOSE A SPORT

The South American duo Juan Martin del Potro and Fernando Gonzalez will both be dangerous opponents, while twice beaten finalist Andy Roddick is being mentioned in dispatches, although the ankle injury he collected at Queen's -- and the suspicion that he isn't quite the player he used to be -- would be a concern.

CNN: Wimbledon - men's singles preview

However, 28-year-old Gonzalez, who had overpowered all his previous Roland Garros opponents including third seed Andy Murray, began to fight back.

CNN: Soderling fights back to secure final place

Cilic will play seventh seed Andy Roddick in the quarterfinals after the American closed out victory over former runner-up Fernando Gonzalez of Chile in their five-setter, which ended in the early hours of the morning.

CNN: Cilic shocks fourth seed Del Potro in Melbourne