Nakashima's incredible tournament continues!

But what's happening to Brandon Nakashima?

On cloud nine since the start of the tournament, the 23-year-old continued his incredible run on Friday, dominating an in-form Musetti (6-2, 3-6, 6-3, 7-6 in 3h15).

Nakashima, who arrived in New York in a highly satisfactory state of form, has been impressing everyone this week.

After kicking off his Major with an incredible win over Rune (6-2, 6-1, 6-4) and quietly confirming his feat against Cazaux (6-4, 6-4, 6-2), he took it up a notch.

Opposed to one of the most in-form players of the moment, the world's 50th-ranked player put in another immense performance, in all areas of the game (17 aces, 79% of points won on first ball, 50 winners, 30 unforced errors).

For a place in the quarter-finals, he will face the winner of the match between Zverev and Etcheverry.