NEW YORK - Andre Agassi beat Xavier Malisse 6-3, 6-4, 6-7 (5), 4-6, 6-2 to become the oldest U.S. Open men's quarterfinalist since Jimmy Connors' legendary run at 39 to the semis in 1991.

He'll face fellow American James Blake, a wild card who came back from injury and illness to knock off No. 2 Rafael Nadal in the third round and beat No. 19 Tommy Robredo in the fourth, 4-6, 7-5, 6-2, 6-3.