Spanish superstar Carlos Alcaraz was knocked out of the US Open by Dutch world number 74 Botic van de Zandschulp in the second-round upset on Thursday. 

World number three and 2022 champion Alcaraz lost 6-1, 7-5, 6-4, ending his bid to become the third man in the modern era to win the French Open, Wimbledon and US Open in the same season. Alcaraz had made at least the quarter-finals in his three previous appearances in New York and Thursday's defeat was his earliest at a Grand Slam since a second-round exit at Wimbledon in 2021. 

"I'm a little lost for words," said van de Zandschulp after only his second career win over a top-five player.

"It was an incredible evening out here, my first time in the night session on Arthur Ashe. I had some unbelievable points at the net.

"I tried to stay calm. You must keep your head against these guys otherwise they will take advantage."

Alcaraz, who had needed four sets to see off Australian qualifier Li Tu in the first round, appeared on court with his left thigh heavily strapped.

That proved the least of his problems as he dropped serve twice in the opening set, failing to hit a single winner against his 28-year-old opponent, who made the quarter-finals on his debut in 2021.