Roger Federer in action against Mischa Zverev on day six of the Wimbledon Championships at The All England Lawn Tennis and Croquet Club, Wimbledon. (Photo by John Walton/PA Images via Getty Images)
Roger Federer in action against Mischa Zverev on day six of the Wimbledon Championships at The All England Lawn Tennis and Croquet Club, Wimbledon. (Photo by John Walton/PA Images via Getty Images)