|Fernando Verdasco (left) and Andy Roddick|
Roddick, the top seed, was leading 5-3 in the second set with a triple match point against Fernando Verdasco of Spain when the Spaniard appeared to double fault and lose the match.
However, Roddick said the ball was in, thereby giving Verdasco an ace and allowing the match to continue. The Spanish player saved the next two match points and went on to win in three sets, 6-7, 7-6, 6-4.
Verdasco next takes on French Open runner-up Guillermo Coria of Argentina, a straight-set winner over Italian Davide Sanguinetti (6-0, 6-4).
Meanwhile, American veteran Andre Agassi earned a quarterfinal berth with a straight-set win over Ivan Ljubicic of Croatia (7-6, 6-3). Agassi takes on Slovakia's Dominik Hrbaty, a three-set winner over fourth-seeded Tim Henman of Britain (6-3, 3-6, 6-3).
Some information for this report provided by AP