ROME , ITALY - MAY 17: Nicolas Almagro of Spain tries to walk after getting injured during the men's single match against Rafael Nadal of Spain (R) within the Internazionali BNL d'Italia at the Foro Italico in Rome, Italy on May 17, 2017. (Photo by Claudio Pasquazi/Anadolu Agency/Getty Images)
ROME, ITALY - MAY 17: Nicolas Almagro (L) of Spain holds his injured knee after retiring from his second round match against Rafael Nadal (C) of Spain 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: Rafael Nadal of Spain walks towards an injured Nicolas Almagro of Spain who retired whilst losing 0-3 in the opening set 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)
