ROME, ITALY - MAY 12: Roger Federer of Switzerland reacts during his match against Dominic Thiem of Austria on Day Five of The Internazionali BNL d'Italia on May 12, 2016 in Rome, Italy. (Photo by Dennis Grombkowski/Getty Images)
ROME, ITALY - MAY 12: Roger Federer of Switzerland reacts during his match against Dominic Thiem of Austria on Day Five of The Internazionali BNL d'Italia on May 12, 2016 in Rome, Italy. (Photo by Dennis Grombkowski/Getty Images)