Novak Djokovic Upset by Alexei Popyrin in U.S. Open Shock

Defending champion Novak Djokovic was surprisingly defeated by Alexei Popyrin in the third round of the U.S. Open. Djokovic, aiming for a historic 25th Grand Slam singles title, was outplayed, marking his worst U.S. Open performance since 2006. Popyrin, a 28th seed, showcased his best form to secure the win.

Defending champion Novak Djokovic faced a surprising defeat at the U.S. Open, courtesy of 28th-seeded Alexei Popyrin. Djokovic was trying to secure a record 25th Grand Slam title but exited in the third round with a 6-4, 6-4, 2-6, 6-4 loss.

Djokovic's third-round exit marks his worst U.S. Open performance since 2006. Recovering from a knee surgery in June, he struggled physically and emotionally, particularly after winning his first Olympic gold medal recently.

Alexei Popyrin capitalized on Djokovic's off-day, playing exceptionally well at the net and securing a career milestone victory. Popyrin will now face Frances Tiafoe in an attempt to reach his first Grand Slam quarterfinal.

(With inputs from agencies.)