New York - Five-times champion Roger Federer dismissed Paul-Henri Mathieu of France 6-4, 6-3, 6-3 on Saturday to reach the fourth round of the US Open.
The Swiss number two seed had more trouble from the gusting winds at Flushing Meadows than he did with the game of Mathieu as he ran out a comfortable winner.
Mathieu's only chance came when he forced a break point in the eighth game but Federer saved it and won three games in a row to win the first set.
Federer broke twice to win the second set and in the sixth game of the third as he booked a match against either 13th seed Jurgen Melzer of Austria or Juan Carlos Ferrero, the 22nd seed from Spain.