Jack Draper joins Andy Murray in the third round of the US Open

Jack Draper produced a superb performance to beat sixth seed Felix Auger-Aliassime and join Andy Murray in the third round of the US Open.

Murray reached the last 32 at Flushing Meadows for the first time since 2016 earlier, coming from a set down to beat American wild card Emilio Nava 5-7 6-3 6-1 6-0.

But she was upstaged in the night session by 20-year-old Draper, who has developed at lightning speed this season and dominated last year’s semi-finalist Auger-Aliassime with a 6-4 6-4 6-4 win .

“It was a tough match,” Draper said. “It is obvious that he is a top player for a reason. Someone I’ve been watching for the last few years, wanting the chance to play against him.

“To beat him in a grand slam is obviously a great achievement for myself. I’m proud of the way I performed there today.

“All the hard work I’ve done these past years is for these moments. Obviously (for) myself, it also means a lot, but (for) all the people around me who support me every day, who go through highs and lows with me, it’s a great moment.

The result means Draper, who next meets Russian Karen Khachanov, will break into the top 50 for the first time having been ranked outside the 250 at the start of the season.

Murray didn’t have things all his own way against the 20-year-old Nava, losing the 84-minute opening set before turning things around in impressive fashion.

The Scot is finally not fighting his body, and he said: “Physically it’s the best I’ve felt in the last few years. My movement is by far the best it’s been in a long time, that’s always a really important part of my game.

“In this day and age, especially with a lot of guys hitting big balls, you have to be able to defend well. I feel like I just did that. I’m getting closer to where I want to go and hopefully I can have a deep run here.”

The 2012 champion faces a big test next against 13th seed and former Wimbledon finalist Matteo Berrettini.

There was disappointment, however, for Harriet Dart, who was unable to follow up her big win over Daria Kasatkina, going down 6-4 6-0 to Dalma Galfi.

Dart broke down in tears afterwards, saying: “It was a lot to process the other day. I didn’t go very far and I felt terrible there. It’s just frustrating to play like that in the slam. You have such highs and such lows in one week.

“I haven’t been feeling that well all week but I managed to find something on Monday. I think it just emotionally took a lot out of me and physically I’ve been quite exhausted over this trip.”

Cameron Norrie and Dan Evans will try to get four British men into the third round when they take on Joao Sousa and James Duckworth, respectively, on Thursday.