Serbia's Novak Djokovic slips as he plays US player Sam Querrey during their men's singles third round match on the fifth day of the 2016 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 1, 2016. / AFP / GLYN KIRK / RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)
