Tomas Berdych, Roger Federer among those in action
Roger Federer of Switzerland celebrates defeating Gael Monfils of France in the fifth set of their quarter-final men's singles match at the 2014 U.S. Open tennis tournament in New York, September 4, 2014.MIKE SEGAR/Reuters
Bob Bryan, left, pretends to knock Mike Bryan on the head after a missed shot during a semi-final doubles match against Scott Lipsky and Rajeev Ram at the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Julio Cortez/The Associated Press
Marcelo Melo, left, returns a shot as Ivan Dodig looks on during a semi-final doubles match against Marc Lopez and Marcel Granollers, of Spain, at the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Seth Wenig/The Associated Press
Bob and Mike Bryan of the U.S. celebrate after winning their doubles semi-final match against compatriots Scott Lipsky and Rajeev Ram at the 2014 U.S. Open tennis tournament in New York, September 4, 2014.RAY STUBBLEBINE/Reuters
Tomas Berdych serves to Marin Cilic on Day 11 of the 2014 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center.Jerry Lai
Marin Cilic, of Croatia, serves against Tomas Berdych, of the Czech Republic, during the quarter-finals of the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Seth Wenig/The Associated Press
Marin Cilic, of Croatia, returns a shot against Tomas Berdych, of the Czech Republic, during the quarter-finals of the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Seth Wenig/The Associated Press
Tomas Berdych of the Czech Republic misses a serve from Marin Cilic of Croatia during their quarter--final match at the 2014 U.S. Open tennis tournament in New York, September 4, 2014.RAY STUBBLEBINE/Reuters
Tomas Berdych of the Czech Republic serves to Marin Cilic of Croatia during their quarter--final match at the 2014 U.S. Open tennis tournament in New York, September 4, 2014.EDUARDO MUNOZ/Reuters
Tomas Berdych, of the Czech Republic, reacts after losing a point to Marin Cilic, of Croatia, during the quarter-finals of the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Seth Wenig/The Associated Press
Tomas Berdych, of the Czech Republic, reacts after the chair umpire ruled that a ball hit by Marin Cilic, of Croatia, bounced twice before hitting Berdych's racket during the quarter-finals of the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Seth Wenig/The Associated Press
Martina Hingis, left, pumps fists with Flavia Pennetta during a semifinal doubles match against Cara Black and Sania Mirza at the 2014 U.S. Open tennis tournament, Thursday, Sept. 4, 2014, in New York.Charles Krupa/The Associated Press