Aryna Sabalenka and Novak Djokovic overcame early tests to reach the US Open second round before the Grand Slam descended into chaos late on Sunday when Daniil Medvedev launched a tirade at the match umpire and fans disrupted his opponent’s service game. New York’s famously rowdy fans caused a six-minute delay by refusing to stop jeering and booing midway through Medvedev’s 6-3 7-5 6-7(5) 0-6 6-4 defeat by Benjamin Bonzi on Louis Armstrong Stadium. The controversy began when a photographer entered the court prematurely after Bonzi missed his first serve on match point at 5-4 in the third set, prompting chair umpire Greg Allensworth to award the Frenchman another first serve for the disturbance. An incensed Medvedev exploded at the official and whipped up the crowd, preventing a rattled Bonzi from serving. Russia’s Daniil Medvedev talks to the referee during his first round match against France’s Benjamin Bonzi. — Reuters Daniil Medvedev breaks his racket after losing in five sets to Benjamin Bonzi of France d...