NEW YORK - MARCH 10: Roger Federer of Switzerland and Grigor Dimitrov of Bulgaria pose for a photo after the BNP Paribas Showdown at Madison Square Garden on March 10, 2015 in New York City. (Photo by Jeff Zelevansky/Getty Images)
NEW YORK - MARCH 10: Roger Federer of Switzerland and Grigor Dimitrov of Bulgaria pose for a photo after the BNP Paribas Showdown at Madison Square Garden on March 10, 2015 in New York City. (Photo by Jeff Zelevansky/Getty Images)