Switzerland's Roger Federer serves to Czech Republic's Tomas Berdych during their men's singles semi-final match on the eleventh day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 14, 2017. / AFP PHOTO / Adrian DENNIS / RESTRICTED TO EDITORIAL USE        (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)