In a stunning upset at the US Open, Australian Alexei Popyrin defeated tennis legend Novak Djokovic in the third round, marking the greatest victory of Popyrin's career with a score of 6-4, 6-4, 2-6, 6-4. This loss signifies the first time since 2006 that Djokovic has not reached at least the fourth round of the tournament, and it ends his year without a Grand Slam title for the first time since 2017. Djokovic's performance was marred by 14 double faults and 49 unforced errors, leading him to describe his play as among the worst he has ever experienced. Popyrin, who had previously lost to Djokovic in their three prior encounters, highlighted his emotional journey and breakthrough into the fourth round for the first time in his career. The results at the US Open have raised hopes among other competitors as the tournament progresses, with Coco Gauff also advancing despite a scare. This marks a notable year in men's tennis, as none of the 'Big Three' have claimed a Grand Slam title for the first time since 2002.