ROME, ITALY - MAY 17: David Ferrer of Spain during his second round match against Kei Nishikori of Japan on Day Four of The Internazionali BNL d'Italia 2017 at the Foro Italico on May 17, 2017 in Rome, Italy. (Photo by Michael Steele/Getty Images)
ROME, ITALY - MAY 17: David Ferrer of Spain during his second round match against Kei Nishikori of Japan on Day Four of The Internazionali BNL d'Italia 2017 at the Foro Italico on May 17, 2017 in Rome, Italy. (Photo by Michael Steele/Getty Images)