New York – Roger Federer and Andy Murray could meet in a U.S. Open semifinal that would be a rematch of their recent finals at Wimbledon and the London Olympics.

The top-seeded Federer and No. 3 Murray were placed in the same section of the field during Thursday's draw at Flushing Meadows. Federer beat Murray at the All England Club; Murray beat Federer for the gold medal.

Defending champion Novak Djokovic could face No. 4 David Ferrer in the semifinals.

Rafael Nadal withdrew with knee trouble.

Potential quarterfinals: Federer vs. No. 6 Tomas Berdych, who upset him in the 2010 Wimbledon quarterfinals; Djokovic vs. 2009

U.S. Open champion Juan Martin del Potro; Murray vs. No. 5 Jo-Wilfried Tsonga; Ferrer vs. No. 8 Janko Tipsarevic.

The women's draw is later Thursday.

Play begins Monday. – Sapa-AP