Carlos Alcaraz offers his thoughts on surviving Jannik Sinner in the legendary US Opan thriller.

After overcoming Jannik Sinner in a gripping US Open match, Carlos Alcaraz was a little speechless. Alcaraz defeated Sinner on Wednesday night in New York by saving a match point and winning 6-3 6-7 (7) 6-7 (0) 7-5 6-3. The longest match in US Open history ended at 2.50 a.m. after five hours and fifteen minutes of play.

According to the ATP website, Alcaraz commented after the victory, “Honestly, I still don’t know how I achieved it.” It was very challenging to win the match; I tried to maintain my composure, but it is challenging in the moment. You have to trust in yourself. I believed in my game.

On a match point in the fourth set, Alcaraz made a save.

Sinner had a fantastic chance to win the match after taking the second and third sets in a tie-break. In the fourth set, Sinner led 5-3. When Sinner was serving for the match in the tenth game, he lost a match point when Alcaraz broke back to tie the set at five games each.

When Sinner was serving to remain in the fourth set in the 12th game, Alcaraz once more broke Sinner. Sinner was leading by a break and 3-2 in the fifth set when he experienced a dramatic collapse, dropping the next four games and the match.

“I was probably at my end by the time the game ended. For me, it was extremely, really difficult,” Alcaraz remarked. “[But] I felt excellent physically for the entire match—five hours and fifteen minutes of the contest. The caliber of tennis we played was quite high.

But I felt fantastic. At three in the morning, the excitement I felt in this court was incredible. In other events, everyone would likely retire to their homes to rest. However, they continued to stand by my side in court. It was incredible. In the US Open semifinal, Alcaraz will take on Frances Tiafoe.