(L-R) Actors Luke Wilson and Will Ferrell watch the action between Roger Federer of Switzerland and Marcel Granollers of Spain with Ferrell's son during their men's singles third round match on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Streeter Lecka/Getty Images)
2014 US Open - Day 7
Roger Federer of Switzerland returns a shot to Marcel Granollers of Spain during their men's singles third round match on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Mike Stobe/Getty Images for USTA)
2014 US Open - Day 7
Richard Gasquet of France returns a shot to Gael Monfils of France on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Elsa/Getty Images)
2014 US Open - Day 7
Teymuraz Gabashvili of Russia returns a shot to Tomas Berdych of the Czech Republic on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Elsa/Getty Images)
2014 US Open - Day 7
Tomas Berdych of the Czech Republic serves the ball to Teymuraz Gabashvili of Russia on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Elsa/Getty Images)
2014 US Open - Day 7
Gael Monfils of France serves the ball to Richard Gasquet of France on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Elsa/Getty Images)
2014 US Open - Day 7
Belinda Bencic of Switzerland reacts after a point against Jelena Jankovic of Serbia during their women's singles fourth round match on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Mike Stobe/Getty Images for USTA)
2014 US Open - Day 7
Grigor Dimitrov of Bulgaria celebrates his match win over David Goffin of Belgium on Day Seven of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 31, 2014. (Photo by Elsa/Getty Images)
