2014 US Open Champion Marin Cilic New York City Trophy Tour [Getty Images]

NEW YORK, NY - SEPTEMBER 09: Marin Cilic of Croatia, the 2014 US Open Men's Singles champion, visits the offices of Facebook during the Champions New York City Trophy Tour on September 9, 2014 in New York City. (Photo by Chris Trotman/Getty Images for ATP)

Getty Images Sport Chris Trotman