The 30-year-old American is just one game away from making it to the semis.

She has looked consistent compared to her challenger, the world’s number one women’s player, has not been tonight.

If Pegula, the number six seed, wins tonight’s match, she will advance to her first major semifinal after six previous attempts, according to the US Open.

Just over an hour into the match, the American is up 6-2, 4-3.

Swiatek had made a series of unforced errors when it appeared that Pegula was about to break the Polish player’s serve to take the lead.

But that’s not what happened. Swiatek pulled Pegula from one side of the court to the next, which Pegula responded with a lob. The world’s number one put away the lob with an overhead smash to the American’s backhand side.

After more long rallies, resulting in each player’s advantage, Pegula ended up breaking the tournament’s top seed.

In an exciting point, Swiatek came up to the net, putting Pegula on the defensive.

The American popped the ball up in a lob, giving herself time to recover. Then, with both players back at the baseline, Swiatek’s shot hit the net.

Pegula is dominating Swiatek, the number 1 seed, in this match.

The American clinched the first set 6-2. The women both have 2 games in the second set.

There were claims that Sinner was receiving preferential treatment, with fellow player Denis Shapovalov writing on social media that there were “different rules for different players”. More recently, Sinner admitted that he got a frosty reception in the locker room at the US Open.

The current British number one beat Czech Tomas Machac 6-3, 6-1, 6-2 in the round of 16 to book his place in the final eight, and he faces the Australian 10th seed – who beat compatriot Jordan Thompson to get to this stage – on 4 September.

Draper will feel like he can advance to the later rounds, but just where exactly does he rank among the remaining players?

In a battle of New York-born baseliners, Navarro, who beat defending champion Coco Gauff in the previous round, stunned Badosa by winning the final six games of the second set to wrap up victory in 72 minutes.

Navarro consolidated an early break to go 3-0 up and leaned on her remarkable forehand while turning aside the two break points she faced to secure the first set in convincing fashion.

Good afternoon and welcome to The Independent’s coverage of the US Open quarter-finals.

Iga Świątek is up first against home hopeful Jessica Pegula, before men’s number one Jannik Sinner faces Daniil Medvedev.

And we’ll have all the build-up, updates and reaction right here through the afternoon and into the evening.