Coco Gauff won the all-American showdown against teenager Iva Jovic to reach the US Open quarter-finals. The 22-year-old, who is bidding for a second Flushing Meadows title, overpowered Jovic 6-1, 6-4 on a balmy Labour Day bank holiday night in New York.

A jittery start from the 2023 winner gifted 18-year-old Jovic a break in the first game with a double fault. But Jovic's nerves were also on show as Gauff raced away with the next six games to take the first set.

Jovic finally held serve at the start of the second but three spectacular Gauff hustles, turning desperate defence into all-out attack, secured a break for 3-2. The youngster managed to hit straight back, but was then broken to love as Gauff took control before serving out to win in an hour and 33 minutes.

Gauff, who is yet to drop a set so far, made sure to reassure Jovic that her time will come: "Iva's an incredible player, an incredible talent, she plays beyond her years. I'm used to being the younger American!"