Rafael Nadal of Spain hits a return to Nicolas Almagro of Spain during their match at the ATP Tennis Open tournament on May 17, 2017 at the Foro Italico in Rome. Rafael Nadal advanced to the Rome Masters third round on Wednesday as fellow Spaniard Nicolas Almagro was forced to retire with a left knee injury. Almagro, a three-time French Open quarter-finalist - he lost all three to Nadal - was unable to continue after 24 minutes while trailing his compatriot 3-0 in the first set. / AFP PHOTO / TIZIANA FABI