Alexander Zverev lamented missed chances after coming “super close” to being a grand slam champion in a loss to Dominic Thiem.

Zverev fell short in a dramatic US Open final on Sunday, losing 2-6 4-6 6-4 6-3 7-6 (8-6) to Thiem on Arthur Ashe Stadium.

Playing his first major final, Zverev was also up a break in the third set and led 5-3 in the fifth before losing.

Zverev was disappointed to let the opportunities slip away in the decider.

“I was super close to being a grand slam champion. I was a few games away, maybe a few points away,” he told a news conference.

“For me what upset me the most is not the third set or something like that, it’s the fifth set. I had a lot of chances in the fifth set and didn’t use them.

“I’m 23 years old. I don’t think it’s my last chance. I do believe that I will be a grand slam champion at some point.”

Zverev served 15 double faults in his defeat, having made the better start before Thiem responded.

He said it was difficult to accept his loss after being in such a promising position.  

“Obviously being two sets to love and a break up in a grand slam final then losing is not easy,” Zverev said.

“Yeah, I mean, the match turned when he broke me I think for the first time in the third set.

“I think he started playing much better and I started playing much worse. That’s when the match turned. But I still had plenty of chances after that.”