Defending US Open champion Novak Djokovic advanced to the third round after fellow Serb Laslo Djere retired due to an abdominal injury, with Djokovic leading 6-4, 6-4, 2-0. This victory marks Djokovic's 90th win at the US Open, making him the only man to have won 90 matches at all four Grand Slam tournaments. Djokovic acknowledged Djere’s strong performance, noting that Djere led 4-2 in the second set and had two break points before taking a medical timeout. Despite struggling with his serve and the sweltering conditions, Djokovic expressed relief and empathy for Djere's injury. Djokovic will next face Australia’s Alexei Popyrin in the tournament. Djokovic continues his quest for a record 25th Grand Slam title.