Qualifier Galan produces epic first-round upset over Tsitsipas

Playing in the main draw for the first time, Galan appeared right at home on tennis' biggest stage, claiming the first 11 games as Tsitsipas struggled to find any of his usual finesse and won just five of his service points in the first set.

Tsitsipas had a physio tend to his right arm before the sixth game in the second set, when he finally got on the board, and again during the break before the third set, when he broke Galan in the second game.

Tsitsipas, who has never gotten past the third round at the US Open and had hoped to do better this year after reaching the Cincinnati final, dropped only four of his first-serve points in the third set and looked as though he had the momentum when he broke Galan again in the opening game of the fourth set.

"I just stayed calm. I lost the set but I felt I was doing better and better," said Galan, who broke back in the eighth.

Dripping with sweat and with the crowd egging them on, Galan nearly broke Tsitsipas for the match five times in the 10th game, and finally got the job done in the 12th, gazing at the stands with disbelief.

"I can't explain how I feel right now," he said after the match. "I went through the match well."