Switzerland's Roger Federer returns against Serbia's Novak Djokovic during their men's singles final on day thirteen of the 2019 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 14, 2019. (Photo by Laurence Griffiths / POOL / AFP) / RESTRICTED TO EDITORIAL USE (Photo credit should read LAURENCE GRIFFITHS/AFP via Getty Images)
