Jack Sock gets 30th birthday serenade from The O2 crowd at Laver Cup

WATCH: About last night... Jack Sock and Frances Tiafoe defeat Roger Federer and Rafael Nadal at the Laver Cup

Can anyone say they’ve had a more memorable birthday weekend than Jack Sock?

The morning after his momentous victory over Roger Federer and Rafael Nadal in Laver Cup doubles alongside Frances Tiafoe, Sock rang in his milestone 30th birthday.

To mark the occasion, Sock’s fellow Team World players feted him with a decked locker room featuring red balloons and he also enjoyed a bite out of a golf themed cake, according to the American’s Instagram Stories.

He also got a lovely serenade from a packed house at The O2:

Sock admitted his 4-6, 7-6 (2), [11-9] victory over Federer on Friday night—which officially sent the 20-time Grand Slam champion into retirement—left him with mixed emotions.

“I've got the opportunity to play him a few times in Laver Cup, and that team before, so it brought back some memories of that, which was exciting,” Sock said after the match.

“'Foe and I played him together for the first time, trying to bring crazy energy. Obviously had 99.9% of the crowd against us, but it was super fun to just be a part of that match. I think we are going to be forever grateful to be a part of the GOAT's final match.

“But I don't think it settled in until after. When I hit that last shot, and realized it was over, it was, like, I kind of went numb…”

Once all the emotions were cried out, Sock was back in doubles action on Saturday for Team World. His birthday celebration didn’t quite go according to plan, with the American partnering Alex de Minaur in a 7-5, 6-2 defeat to Novak Djokovic and Matteo Berrettini.

He’ll be back on court on Sunday for the final day of Laver Cup, partnering with Felix Auger-Aliassime to face Berrettini and Andy Murray in the first match of the day.

Team World trail Team Europe 4-8.