NEW YORK (AP) - Roger Federer saved two match points while coming all the way back from a two-set deficit to beat Gael Monfils 4-6, 3-6, 6-4, 7-5, 6-2 on Thursday night and reach the U.S. Open semifinals for the first time since 2011.
Frustrated by Monfils' unpredictable style, flummoxed by the swirling wind, and missing shots he normally makes, Federer twice was a single point from losing while down 5-4 in the fourth set.
But he got out of that hole, starting a five-game run that put the match in his control for the first time all evening. It helped that Monfils' quality of play dipped, including what wound up being a total of 10 double-faults.
This was the ninth time Federer has won a match after dropping the opening two sets.