Serbia’s Novak Djokovic returns against Spain’s Rafael Nadal during their men’s singles semi-final match on the eleventh day of the 2018 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 13, 2018. / AFP PHOTO / POOL / Daniel LEAL-OLIVAS / RESTRICTED TO EDITORIAL USEAFP PHOTO / Oli SCARFF / RESTRICTED TO EDITORIAL USE AFP PHOTO / Oli SCARFF / RESTRICTED TO EDITORIAL USEAFP PHOTO / Ben Curtis / RESTRICTED TO EDITORIAL USESpain’s Rafael Nadal returns against Serbia’s Novak Djokovic during their men’s singles semi-final match on the eleventh day of the 2018 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 13, 2018. / AFP PHOTO / Oli SCARFF / RESTRICTED TO EDITORIAL USE AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE AFP PHOTO / Oli SCARFF / RESTRICTED TO EDITORIAL USEAFP PHOTO / Oli SCARFF / RESTRICTED TO EDITORIAL USE AFP PHOTO / POOL / Daniel LEAL-OLIVAS / RESTRICTED TO EDITORIAL USE AFP PHOTO / Oli SCARFF / RESTRICTED TO EDITORIAL USE AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USEGlyn KIRK / RESTRICTED TO EDITORIAL USE