Roger Federer reacts during his match 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 reacts during his match 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)