US Open: Day 9

In This Photo: Grigor Dimitrov
Grigor Dimitrov of Bulgaria looks on against Gael Monfils of France during their men's singles fourth round match on Day Nine of the 2014 US Open at the USTA Billie Jean King National Tennis Center on September 2, 2014 in the Flushing neighborhood of the Queens borough of New York City.
(Sept. 1, 2014 - Source: Streeter Lecka/Getty Images North America)