US Open day four - listen to BBC Radio 5 Live commentary (UK only)
LIVE: Jacob Fearnley 3-6 3-6 Tomas Martin Etcheverry
LIVE: Francesca Jones resumes suspended first-round tie v Magda Linette - Briton leads 6-4
GB's Toby Samuel due to play later
Katie Boulter beaten 6-1 6-0 by Wimbledon finalist Karolina Muchova, Jan Choinski loses in straight sets by Botic van de Zandschulp
Jessica Pegula and Daniil Medvedev both progress with straight-set wins
Defending champions Aryna Sabalenka and Carlos Alcaraz play overnight
*Linette 4-6 6-1 0-1 Jones
Fran Jones needed to start this deciding set well and she does just that as she races into a 40-0 lead.
The Briton seals the game with a forehand winner down the line which Magda Linette can do nothing about.
That will do Jones' confidence a world of good.
Fearnley 3-6 3-6 2-1 Etcheverry*
Already there's so much more variety from Jacob Fearnley in this third set, coming into the net and forcing errors on a couple of occasions as he races to a 40-0 lead.
A double fault on game point blots his copy book but he closes out the hold without further incident, stepping into a powerful cross-court forehand which his opponent struggles to get a racquet on.
Linette 4-6 6-1 0-0 Jones*
Magda Linette brings up two set points as Fran Jones is unable to get a forehand into play, and the Pole seals it in style with an ace.
Linette has been so impressive since this match restarted, firing eight winners to Jones' zero.
*Fearnley 3-6 3-6 1-1 Etcheverry
Three aces in the game as Tomas Martin Etcheverry holds to 30.
*Linette 4-6 5-1 Jones
That's much better from Fran Jones as some strong serving sees the Briton hold to love.
She'll need to carry that momentum into this next game because Magda Linette will now serve for the set.
Fearnley 3-6 3-6 1-0 Etcheverry*
Jacob Fearnley lets out a couple of shouts of "come on" as he comes through deuce at the first attempt to hold.
That's the first time he's held his opening service game of a set in this match.
Linette 4-6 5-0 Jones*
Magda Linette is steamrolling towards winning this second set and this looks a completely different match to what it was on Tuesday.
Fran Jones to serve to stay in the set.
*Fearnley 3-6 3-6 0-0 Etcheverry
Sharp defence from Jacob Fearnley, sprawling to his left to recover a backhand on the baseline and keep the rally alive. Forced to play a couple of extra shots, Tomas Martin Etcheverry nets a backhand.
However, the 27th seed isn't down for long, ripping an angled forehand winner to take the opening game of the third set to deuce.
*Linette 4-6 4-0 Jones
Magda Linette is on the money with her returning at the moment as some deep shots land at Fran Jones' toes which the Briton can do little about.
Jones then plants a forehand into the net to give Linette the double break.
*Fearnley 3-6 3-6 0-0 Etcheverry
Nothing Jacob Fearnley can do about that one! A big first serve from the Argentine and it cramps Fearnley for room, with his forehand flying wide.
Huge roar from Tomas Martin Etcheverry.
He's one set away from the third round - but don't count out the Brit quite yet. He's completed three or four remarkable comeback wins this season, including in his tournament opener when he was 5-2 down in the fourth set before winning 10 of the next 11 games to flip the match on its head.
Fearnley 3-6 3-5 Etcheverry*
Saved again! Jacob Fearnley is on the back foot after a monstrous first serve but seizes his opportunity to climb inside the baseline and unleash a scorching backhand winner.
But, the 27th seed quickly earns another set point.
Linette 4-6 3-0 Jones*
Fran Jones has not started as well as she finished on Tuesday when her match against Magda Linette was suspended because of rain with the Briton a set up.
Poland's Linette has won all three games since the match restarted to take control of the second set.
Fearnley 3-6 3-5 Etcheverry*
Jacob Fearnley plants a forehand in the net at the end of a lengthy baseline exchange.
Set point number three.
Fearnley 3-6 3-5 Etcheverry*
Jacob Fearnley saves the first set point, moving up the court for a cross-court forehand winner, and wipes out the second with an overhead smash after defending hard on his backhand.
Fearnley 3-6 3-5 Etcheverry*
Play is about to get back under way on court 12 where Tomas Martin Etcheverry has two set points for a two-set lead over Briton Jacob Fearnley.
It's been another rain-delayed day but here's what's happened in a few of the matches that have finished so far today.
Russian seventh seed Daniil Medvedev is safely through to the third round with a 6-1 6-3 7-5 win over American Sebastian Gorzny.
But it fellow Russian Andrey Rublev is out after the 23rd seed lost 7-6 (7-3) 2-6 4-6 4-6 against Spain's Daniel Merida.
Third seed Jessica Pegula beat fellow American Sofia Kenin 6-3 6-1, while Italian 19th seed Jasmine Paolini defeated compatriot Lucrezia Stefanini 6-4 6-1.
Shelton 6-3 5-7 7-6 (7-3) 7-5 Hurkacz
It's another four-set victory for Ben Shelton! The American number one keeps his US Open hopes alive and moves into the third round.
He was under the cosh throughout that final set but he saves four break points and the home crowd pull him through in the end.
Shelton's girlfriend, US football star Trinity Rodman, is on her feet and cheering, wearing a T-shirt that says "I love my boyfriend".
Boulter 1-6 0-6 Muchova
Daniela Hantuchova
Former world number five on BBC Radio 5 Live
I would be really humbled, I would sit down with my team and say 'OK, we need to change something big time'.
First of all, it was very obvious today that it was the serve. I feel like it needs to be cleared up because she was losing the rhythm and not using her legs. That's number one thing.
If I am Boulter, I would be on the practice court tomorrow. If she still wants to invest everything into her tennis and then she needs to be on the court.
Image source, Getty ImagesBoulter 1-6 0-6 Muchova
Karolina Muchova was brilliant there but Katie Boutler never gave herself a chance.
The British number one served eight double faults and recorded 22 unforced errors.
Muchova earned seven break points in the match, with Boulter unable to save any of them.
Boulter 1-6 0-6 Muchova
Daniela Hantuchova
Former world number five on BBC Radio 5 Live
Unfortunately for Katie, it was not the best day in the office. Only 58 minutes played but Karolina had a lot to do with that because she so dominant and very solid with everything.
