Daniil Medvedev v Dominic Thiem: US Open men's semi-final – live!

Second set: *Medvedev 2-6, 5-4 Thiem

Thiem holds from love-30 and Medvedev will serve to level the match at one set apiece after the changeover.

Second set: Medvedev 2-6, 5-3 Thiem*

Medvedev holds comfortably, cracking his fifth ace of the night along the way. Thiem will serve to stay in the second set.

Second set: *Medvedev 2-6, 4-3 Thiem

Another hold at love for Thiem, who’s been cruising through his service games with the one big exception at the start of the second set.

Second set: *Medvedev 2-6, 3-2 Thiem

Thiem is back on course on his serve with another love hold, but he will need to make headway on Medvedev’s serve after that lull to open the set. Meanwhile, Zverev is kicking back in his suite, getting off these tweets as his sushi delivery arrives.

Second set: Medvedev 2-6, 3-1 Thiem*

An uneventful hold for Medvedev gets it to 3-1 in the second. He’s made twice as many unforced errors (16) as winners (eight) on the night, but he’s cleaned things up significantly in this set with five winners and six miscues.

Second set: *Medvedev 2-6, 2-1 Thiem

Thiem rights the ship with a straightforward hold of serve to get on the board in the second set.

Second set: Medvedev 2-6, 2-0 Thiem*

Medvedev opens with a 124mph ace down the middle en route to a love hold. Another very scratchy game for Thiem, who seems to have gone on walkabout since the break. Already as many unforced errors for the Austrian through two games (four) as in the entire first set.

Medvedev breaks in first game of second set!

Second set: *Medvedev 2-6, 1-0 Thiem

A very poor service game for Thiem to opener the second set, practically handing Medvedev the break on a silver platter with three unforced errors including his first double fault.

First set: Medvedev 2-6 Thiem

Medvedev quickly goes down love-40 and triple set point. It’s gotten away from him in a hurry. He pounds a 120mph ace out wide to save the first, but makes his 12th unforced error of the night on the next point (against seven winners) to give Thiem the opener after 35 minutes. It’s the first set that Medvedev has dropped in the tournament so far.

First set: *Medvedev 2-5 Thiem

Thiem cruises to another easy hold. He’s won 11 of the last 12 points on his racket and is up to 12 of 12 first-serve points won for the match. Medvedev to serve to stay in the opener.

Thiem breaks in sixth game of first set!

First set: Medvedev 2-4 Thiem*

A grueling 30-shot exchange breaks out on the opening point with Thiem cracking a backhand winner. Medvedev hits an unreturnable serve followed by a 125mph service winner down the middle, then double-faults for 30-all. Then Thiem wins the next point for his second look at a break point in as many games, but Medvedev saves it with another booming serve for deuce. At this point Medvedev receives a warning for crossing the net to point at a mark after he wasn’t allowed to challenge late. He drips with sarcasm after his appeals to the chair umpire and supervisor are rebuffed: “My sincere apologies to US Open for crossing the net.” From there Thiem gets the best of a 20-stroke rally and breaks Medvedev when he misses on a volley.

First set: *Medvedev 2-3 Thiem

Thiem holds at love, hitting an overhand winner at the net on the first point then following with three big serves thagt Medvedev can’t get back into play. He’s won seven straight points on his serve and all nine of his first-serve points won on the night.

First set: Medvedev 2-2 Thiem*

The first pressure points on the match for either playeer as Medvedev goes down love-30 on his serve. He gets it back to 30-all, but Theim then hits a backhand winner at the net early in the point for 30-40 and the first break-point chance of the night. Medvedev responds well, rattling off three quick poins capped by a booming ace down the middle to escape with the hold.

First set: Medvedev 1-1 Thiem*

Medvedev cracks a 120mph ace out wide for 40-15, then follows with his first double fault of the evening and an unforced forehand error from the baseline to push it to deuce. But he holds comfortably from there, closing out the hold in his opening service game with a forehand volley winner at the net.

First set: *Medvedev 0-1 Thiem

Thiem holds in a cagey opening service game that included rallies of 13, 12, 13 and 17 strokes … and an uncharacteristic three unforced errors by Medvedev.

Daniil Medvedev can become the first player in the Open era (since 1969) to win the US Open men’s singles title without dropping a set. The 24-year-old Russian, who pushed Rafael Nadal to the limit over five sets in last year’s final, has swept 15 sets at this year’s tournament to reach this point.

Dominic Thiem, 27, has become the first Austrian semi-finalist in US Open history after a near miss in 2018, when he lost a fifth-set tiebreak to Nadal in the quarter-finals. The last player from Austria to knock on the door was the great Thomas Muster, who reached the US Open quarters in 1993, 1994 and 1996.

Bryan will be here shortly. In the meantime, today’s first semi-final between Pablo Carreño Busta and Alexander Zverev is into the fifth set and you can follow Tumaini Carayol’s minute-by-minute report here.