Spanish third seed Rafael Nadal, trying to complete a career Grand Slam, advanced to the US Open quarter-finals on Tuesday by defeating French 13th seed Gael Monfils 6-7 (3/7), 6-3, 6-1, 6-3.

Nadal, who clinched a return to second in the world rankings with the triumph, will play for a spot in the semi-finals against Chilean 11th seed Fernando Gonzalez, whom he has beaten in six of nine previous matches.