Sam Querrey ends Novak Djokovic's Wimbledon reignUpdated 1845 GMT (0245 HKT) July 5, 2016 Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds. Photos: American shocks Serbian superstarU.S. star Sam Querrey produced the performance of his life to overcome defending champion and world No. 1 Novak Djokovic at Wimbledon.Hide Caption 1 of 6 Photos: American shocks Serbian superstarQuerrey, who had led by two sets to love overnight before the game was suspended for rain, held his nerve in a fourth-set tiebreak to win 7-6 6-1 3-6 7-6. Hide Caption 2 of 6 Photos: American shocks Serbian superstarDjokovic, a three-time Wimbledon winner, was magnanimous in defeat to a player ranked 40 places below him and seeded 28th for the tournament.Hide Caption 3 of 6 Photos: American shocks Serbian superstarWhen play resumed on Saturday, Djokovic gave himself of pulling off a comeback by taking the third set. The Serb star had not lost a match at a grand slam since the 2015 French Open final.Hide Caption 4 of 6 Photos: American shocks Serbian superstarThis was Djokovic's first loss before the quarterfinal of a grand slam tournament since 2009, when he went out in the third round at the French Open. Hide Caption 5 of 6 Photos: American shocks Serbian superstarQuerrey then defeated France's Nicolas Mahut to set up a quarterfinal clash with Canadian sixth seed Milos Raonic.Hide Caption 6 of 6American 28th seed Sam Querrey shocked world No. 1 Novak Djokovic in the third round of his title defense at Wimbledon 2016.More from Sport - TennisSerena Williams ties the knot at 'Beauty and the Beast' themed weddingRafael Nadal wins defamation case over doping claimsCaroline Wozniacki beats Venus Williams for first time to win WTA FinalsUnited States beat Belarus to win first Fed Cup title since 2000U.S. tennis star Jack Sock takes CNN's 'Sock Challenge'!!