Nick Kyrgios is no stranger to stunning winners and trickshots but he was left watching on in awe as 37-year-old Roger Federer produced a moment of pure magic in the Arthur Ashe Stadium on Saturday night.
The Australian was struggling to go toe-to-toe with the 20-time Grand Slam champion in their US Open third-round encounter and his concentration appeared to be drifting when he found himself two sets down.
However, he was sparked back into life by his opponent, who came up with the most ridiculous winner.
Federer rolled back the years to chase down a wide drop-shot from the Australian, showing athleticism an 18-year-old would be proud of.
What followed was simply outrageous.
The five-time champion at Flushing Meadows opted to send the ball round the net post and skidding beyond the 30th seed barely a couple of inches off the ground.
Kyrgios response was similar to the majority of those watching on.
Mouth open, jaw-dropped. He approached the net looking as if he wanted to high five the second seed.
Federer afforded a wry smile as he returned to the baseline, though kept his head firmly in the game.
After the match, he reflected on the moment, saying: I think the funny thing about this shot today is I didnt think about it until I hit it.
Usually in practice theres usually the doubles net. It normally only ever happens on a court of this size.
I guess I deserved that, I went for it so it was good.