NEW YORK (AP) — Canadian teenager Denis Shapovalov got a little taste of late-night life at the U.S. Open along the way to knocking off No. 8 seed Jo-Wilfried Tsonga.

During the 69th-ranked Shapovalov’s 6-4, 6-4, 7-6 (3) victory under the lights in Arthur Ashe Stadium on Wednesday night that put him in the third round of a Grand Slam tournament for the first time, the 18-year-old qualifier said he chatted a bit with some, um, overzealous spectators.

“I noticed a couple of guys had a little bit too much to drink. I mean, some of them were standing and, like, just talking to me as if we’re buddies. I was up a break in one game, I think it was probably 40-15, I just miss a backhand. (One fan is) like, ‘Aaaaah. No!’ I’m like, ‘Don’t worry, man. I got this,'” Shapovalov recounted with a smile.

“I mean, I was just taking it all in,” he continued.

“Like I said, it’s a dream come true to me to play a night match over here on Arthur Ashe. So for me, it was fun. Obviously it’s not easy to play under these conditions. But I managed to put a positive spin on it.”

Shapovalov is almost exactly 14 years younger than Tsonga, a Frenchman who was the runner-up at the 2008 Australian Open.

This is part of quite a run for Shapovalov, who earlier this month beat Rafael Nadal on a hard court in Montreal while becoming the youngest semifinalist at a Masters tournament.

Shapovalov’s first major tournament came last month at Wimbledon, where he lost in the first round. He was the junior champion at the All England Club a year ago.

The only near-slip for Shapovalov against Tsonga came in the third set, when the left-hander served for the match at 5-4 and got broken for the first time all match.

But Shapovalov steadied himself and came through in the tiebreaker, finishing with 28 winners to 19 unforced errors.

“I don’t think I was always mentally solid as I am today. I’ve been working extremely hard on it. … I think it’s improved quite a bit,” he said. “It also helps I’ve been in these situations constantly, playing these top guys. … It’s a little bit easier the second time around and…