Roger Federer's shot heard round the US Open on Saturday — a jaw-dropping forehand around the post in a straight-sets win over Nick Kyrgios — ranks as one of his most memorable, the Swiss great said. "It was definitely one of the more unique ones," said Federer, who raced forward and wide on a sharply angled shot from Kyrgios, stretched and flicked a forehand around the post on Arthur Ashe Stadium.

Kyrgios's eyes widened in astonishment as the ball landed in his court and could be heard opining at the ensuing changeover: "That's got to be the greatest shot in tennis." Federer said it was all instinct — it's not a shot that can be practiced. "You don't get an opportunity to hit around the net post very often, because in practice the net is out further and the court is more narrow. For a shot like this to happen in a practice, you will be running into a fence and you will hit it into the net.