Show only key events Please enable JavaScript to use this feature Still waiting for some reaction from Andy Murray as the dust settles on his fourth round exit. Soon we will have offers along with match reports. Also, watch out for the inside word from Jack Draper. It looked like a hamstring/groin problem that caused his withdrawal, but we’ll see what he has to say in due course. Updated 22.01 BST A disappointing night for the British men with Andy Murray losing in four sets to Berretini and Jack Draper retiring with injury when looking in charge against Khachanov. On the plus side, Cam Norrie and Dan Evans are yet to play – both in action tomorrow – so there is still a chance for British representation in the 16. Meanwhile, Berrettini has given his reaction to that four-set win over Murray. You learn a little from the past. I wasn’t aggressive enough on break points, but that’s tennis. Murray played a very good set not to be broken, but I was feeling better. I had more opportunities. I thought the same in the fourth set. I had my chances and I took them. What I tell myself all the time is that it’s normal to tighten up. That’s what I told myself when I was playing Gael [Monfils] a few years ago. I made a double mistake at the match point. Is normal. We hear about it. That’s life. I told myself next time I’ll try to be braver and that’s what I tried to do in the fourth set.

Draper retires injured against Khachanov

Khanchanov wins 6-3, 4-6, 6-5 (ret) What a shame for the 20-year-old Brit as he decides he can’t go on. It seems a smart play as he had clearly lost full mobility and risked further injury. Had this been the final set, we could have had an argument to hang on and hope for a few winners, but there was plenty of time left in the match. However, it was a tournament to remember and we can expect to see a lot more from him. A disappointed looking Jack Draper leaves the field after being taken off injured. Photo: Dave Shopland/Shutterstock Updated at 21.46 BST Draper 3-6, 6-4, 5-6 Khachanov* (* denotes server) For the second service game running, Draper gives Khachanov the break with a double fault. He runs his hands through his hair and it’s almost impossible to see him turning it now. Draper 3-6, 6-4, 5-5 Khachanov* (* denotes server) Draper puffs out his cheeks as another break attempt at a winner goes away. From 5-2 up it’s now 5-5 and Khachanov is getting stronger as his opponent limps between points. Karen Khachanov serves Jack Draper. Photo: John Minchillo/AP Updated at 21.35 BST Draper 3-6, 6-4, 5-4 Khachanov ( indicates server) Draper has clearly lost some drive and drops his serve to 15. There is speculation now in the commentary box as to whether it is wise to continue. He doesn’t want to risk a long-term injury. “Your health is your wealth,” warns Rushedsky. Updated at 21.31 BST Draper 3-6, 6-4, 5-3 Khachanov* (* denotes server) As is often the case when facing a semi-injured opponent, Khachanov looks a little spooked. Part of his brain tells him to gain the physical advantage he may now have, but another part tells him he doesn’t need to, as his opponent is tired and may surrender. As the infighting continues, Khachanov holds but Draper will now serve for the set. Draper 3-6, 6-4, 5-2 Khachanov ( denotes server) It’s hard to call Draper’s prosperity. Something is wrong and he is clearly trying to score points quickly instead of engaging in big rallies. He faces two break points but, despite the discomfort, gets out of trouble to win the game and lead 5-2. Maybe the pain meds will kick in soon and he’ll start moving a little easier. Updated at 21.21 BST Berettini celebrates his victory over Andy Murray. Draper 3-6, 6-4, 4-2 Khachanov* (* indicates server) Good news. Jack returns and wins the first two points on Khachanov’s serve. Bad news: He misses the next two and seems to be walking a bit briskly, getting up after a forehand and shaking his head a bit. Hopefully it was a response to the stroke rather than the injury. Great news: Draper forces break point and takes it with a great pass to go 4-2 up. More reactions from Andy Murray later, but for now let’s turn our attention to Jack Draper. Oh, as I flip, the young Brit is getting treatment for his “lower back/groin area” according to Greg Rusedski. It’s clearly an issue and Draper leaves the court for more checks. “Hopefully the physical therapist can work his magic,” adds Rusedski, so maybe that won’t be too much of a problem. Draper will be desperate to continue after putting himself in a position of power. Khachanov took the opening set but Draper won the second 6-4 and led 3-2 in the third before a medical timeout.

Murray loses in four sets to Berretini

Berretini wins 6-4, 6-4, 6-7 (1), 6-3 Murray wins the first point but his opponent is too strong and serves out to claim victory in four sets. Murray’s challenge is over. He fought hard and put Berrettini under pressure, but that was just a step too far against an opponent who has been a force at grand slams in recent seasons. Matteo Berretini celebrates his victory over Andy Murray. Photo: Seth Wenig/APAndy Murray waves to the crowd as he leaves the court after his loss. Photo: Mike Stobe/Getty Images Updated at 21.38 BST Murray 4-6, 4-6, 7-6 (1), 3-5 Berrettini ( indicates server) Game eight of the third set begins with Murray again questioning his sanity and delivering an F-bomb after a drop attempt that hits the net. He wins the next but Berrettini has him on the ropes again forcing two more break points. This time the Italian will not be denied and a break at 15 leaves Berrettini serving for the match. Does Murray have something? On the platform, Jack Draper is having a blast now and leads 3-0 in the third set after breaking Khachanov, the 27th seed, in the second game. Murray 4-6, 4-6, 7-6 (1), 3-4 Berrettini* (* indicates server) The pressure now shifts to Berrettini at 30-30, but playing 18th ace relieves it temporarily. Murray brings it up by pressing for a break point and Berrettini’s face looks tense as he thinks the worst. But Murray lets the chance slip, Berettini digs deep to go 4-3 ahead. Murray 4-6, 4-6, 7-6 (1), 3-3 Berrettini ( denotes server) It remains a knife’s edge for Murray and you sense that a poor serve game could prove fatal. We get to 30-all again on Murray’s serve and the next point is huge. Fortunately for the 2012 winner, he volleyed over the net to win match point and Berretini was forced to make it 3-3. Murray’s fitness is holding up well and I dare say his movement looked impressive as he moved to receive Berrettini’s next serve. And to think she has a metal hip. Murray 4-6, 4-6, 7-6 (1), 2-3 Berrettini* (* indicates server) Berrettini’s lightning forehand goes a long way to give Murray the first point, but it is his only gain of the game as his opponent wins the next four for a fairly comfortable hold. Murray, instructed by Ivan Lendl on the sidelines, tries to move Berrettini, but he’s not out yet. Murray 4-6, 4-6, 7-6 (1), 2-2 Berrettini ( denotes server) Murray could take a pressure-free service game and is looking for it on his way as he opens up his body and hits a forehand winner for 40-0. Two points later and the game is his. Play time on it: 3 hours 23 minutes. Updated at 20.38 BST Murray 4-6, 4-6, 7-6 (1), 1-2 Berrettini* (* denotes server) Murray threatens to extend the early break exchange when he gets to 40-30, but Berretini fends him off the pass with a deft touch at the net to go 2-1 up in the quarter. A quick stat check: Berretini has landed 16 aces to Murray’s four and has 50 winners to the Scot’s 22.

Draper leveled at one set all against Khachanov after winning the second 6-4

Draper was 2-1 up early in the second but the 20-year-old Briton really found his mojo here and broke his opponent twice to take the second set 6-4 and level after 90 minutes of Grandstand action. Jack Draper on his way back to level form in his fight with Karen Khachanov. Photo: Danielle Parhizkaran/USA Today Sports Updated at 20.36 BST Murray 4-6, 4-6, 7-6 (1), 1-1 Berrettini ( indicates server) Wouldn’t you know it, after working so hard to break Berrettini, Murray loses his own opening game to love. This came out of nowhere. Berretini looks vulnerable when put under pressure on the scoreboard, but Murray let him completely through there. Murray 4-6, 4-6, 7-6 (1), 1-0 Berrettini* (* indicates server) Four times in his career Murray has come from two sets down to win a match at the US Open. Can he do it again, at 35? He needs to start putting some pressure on Berrettini’s serve and he does here, a forehand sling that secures two break points. He’s only two in the match and takes the third as Berretini sends his backhand into the net. Break and, for now, the momentum is with Murray. The temperature has dropped, which helps Murray’s cause. As does the fact that he now seems to have the majority of the crowd pulling for him after that gutsy performance in the third set. The players take a refreshment break before the fourth set. Let’s go back to Jack Draper’s quest to reach the fourth round and he is currently leading 4-3 in the second set against Karen Khachanov having lost the first. As I write this, it’s 4-4.

Murray wins the third set tiebreak 7-1 to stay alive

So where did that come from?! Murray lost the first point of the tiebreak on his own serve, but then won the third set 7-6 (1). Don’t rule him out just yet! Berretini saw eight points play in that set and certainly tightened up in crucial moments. But has Murray…