Novak Djokovic, a four-time US Open champion, was unexpectedly defeated by Argentina’s Tomás Martín Etcheverry in the first round, marking his earliest Grand Slam exit in two decades. The ailing Serbian appeared unwell throughout the match, struggling with movement and intensity. Etcheverry capitalized on Djokovic’s uncharacteristically poor performance, securing a 6-7(6), 6-3, 7-6(5), 6-2 victory. This defeat ends Djokovic’s 19-match winning streak at the US Open and raises questions about his current physical condition. It's a monumental upset, with Djokovic rarely faltering before the second round of major tournaments. The result opens up the draw considerably for other contenders hoping to win the title. Etcheverry's win is a career highlight and a major shock to the tennis world.