ROME, ITALY - MAY 17: (EDITOR'S NOTE: IMAGE CONVERTED TO BLACK & WHITE) Novak Djokovic of Serbia in action during his victory over Roger Federer of Switzerland in the Men's Singles Final on Day Eight of The Internazionali BNL d'Italia 2015 at the Foro Italico on May 17, 2015 in Rome, Italy. (Photo by Mike Hewitt/Getty Images)
