Fifth set tiebreaker: Thiem 6-5
The Austrian has championship point but he can't convert.
Fifth set tiebreaker: Thiem 5-4
Thiem can win it if he holds serve.
Fifth set tiebreaker: 3-3
They change ends at 3-3. Who is going to take it out from here? The next few points will decide it.
Fifth set tiebreaker: 2-2
Zverev takes an early 2-0 but Thiem hits back to make it 2-2. Both players struggling now.
Fifth set: 6-6
And Thiem fails to serve for the match. They go to a tiebreaker. Wow. Thiem beginning to hobble now. He might have cramp.
Fifth set: Thiem 6-5
Thiem with the biggest break of his career! Wins three games in a row and now he'll serve for his maiden title. What a turn in events. Zverev had this match for the taking and just hasn't stepped up.
Fifth set: 5-5
At 15-30 Zverev is two points away from the title but Thiem again fights back and takes the game with some great shots.
Fifth set: Zverev 5-4
But Thiem breaks straight back. A very nervy service game from Zverev and Thiem makes the most of it.
Fifth set: Zverev 5-3
Once again Zverev takes an early 0-30 lead which he squanders. But he still gets the break. The fifth seed will serve for his first grand slam title.
Fifth set: Zverev 4-3
Another service game to Zverev. A strong hold. These two still have legs with a 17-shot rally in that game.
Fifth set: 3-3
Zverev takes an early 0-30 lead in the game, maybe a sniff of the title, but then Thiem wins four straight points to take out the game.
Fifth set: Zverev 3-2
No problems for Zverev as he holds serve. Thiem slips early in the game and takes a fall. He's quick to blame his shoes but doesn't look like he's slowing down.
Fifth set: 2-2
Thiem holds serve with another entertaining rally.
Fifth set: Zverev 2-1
They are really slugging it out. Zverev wins a 25-shot rally before going on to take the third game. The final set remains on serve.
Fifth set: 1-1
Oh wait. Zverev hits straight back with a break of his own. There's life in him yet. 'Come on let's go' he calls out.
Fifth set: Thiem 1-0
And a break to Thiem in the opening game of the fifth. The first time in the entire match he's had the lead. It's all going his way now.
Fifth set:
It's the fourth straight men's final to go to five sets. Who would have thought after Zverev was cruising in the first two sets. Zverev starts the fifth set with the serve.
Fourth set: 6-2, 6-4, 4-6, 3-6
From two sets down to forcing a decider. What a comeback by Thiem! It's heading to a fifth set and Thiem has the momentum at the moment.
Fourth set: Zverev leads 6-2, 6-4, 4-6, 3-5
5-3 Thiem. The Austrian breaks and we look to be heading to a fifth set. He'll serve to win the fourth.
Fourth set: 6-2, 6-4, 4-6, 3-3 Zverev
Thiem can't convert two break points as Zverev fights back and keeps the set on serve.
Fourth set: 6-2, 6-4, 4-6, 2-3 Zverev
3-2 Thiem. Thiem holds with a strong love game. He's really finding his service rhythm now after a poor start to the match.
Fourth set: 6-2, 6-4, 4-6, 2-2 Zverev
Fourth set goes to game so far. Zverev now up to 12 aces.
Fourth set: 6-2, 6-4, 4-6, 0-1 Zverev
Thiem begins the fourth with a strong service game, winning to love.
Third set: 6-2, 6-4, 4-6 Zverev
Game on! Thiem takes out the third set as he gets the big break in the 10th game and they are going to a fourth set. Theim also sends three racquets away to get restrung. He's expecting this to go five.
Zverev is so hot and cold on his serve - double digits now in both aces (10) and double faults (10).
Third set: 6-2, 6-4, 4-5 Zverev
Thiem wins a challenge to avoid facing a break point and then wins from deuce to keep the set at serve. Zverev now serving to stay in the set. Could easily have been serving for the match.
Third set: 6-2, 6-4, 3-4 Zverev
A crucial hold for Thiem after trailing 0-30 early in the game. But he bounces back to keep the set to serve.
Third set: 6-2, 6-4, 2-3 Zverev
Thiem with his second break of the final and keeps the set to serve.
Third set: 6-2, 6-4, 2-1 Zverev
Another early break for Zverev and he is in top position now in this final.
Second set: 6-2, 6-4 Zverev
Zverev serves to win the set and he is one set away from the US Open title.
Second set: 6-2, 5-4 Zverev
Thiem has his first break point of the final and he converts but Zverev still in control of the set. Thiem then wins the next game to love. Zverev now to serve for the second set.
Second set: 6-2, 4-1 Zverev
Another break for Zverev and this final is all one-way traffic. The favourite is now two breaks and a set down. Theim facing a big task if he's going to come back from this. He's yet to have a break point while Zverev has converted four of his eight break points.
Second set: 6-2, 3-1 Zverev
Zverev comes back from 0-30 to avoid a break. Thiem hasn't had a look-in yet.
Second set: 6-2, 2-1 Zverev
Zverev up a set and a break now as he continues to lead the way in this final. The second set opens with both players holding serve before Zverev breaks Thiem a second time in the third game.
First set: 6-2 Zverev
Zverev totally dominates to win the first set. He closes it out with an ace. 16-4 winners in that opening set for the German who is cruising so far. Thiem will need to adjust quickly or this could be a very short final.
First set: 5-2 Zverev
Another break for Zverev and he's in control on this final so far after back-to-back serve games to zero. Thiem just 37% on first serve compared to Zverev with 77% who also has three aces to one. Zverev has played with great freedom so far.
First set: 3-2 Zverev
Zverev remains a hold up but much better stuff from Thiem with a solid serving game.
First set: 2-1 Zverev
Early break for the underdog. Zverev breaks Thiem on his second service game as the Austrian struggles with his first serve.
Prologue:
When Dominic Thiem and Alexander Zverev meet in the U.S. Open final, one will emerge as a first-time Grand Slam champion, something men's tennis hasn't seen in six years. This is Thiem's fourth major title match - he is 0-2 against Rafael Nadal, 0-1 against Novak Djokovic in past attempts - and Zverev's debut in a Slam final.
It had been 16 years since Grand Slam semifinals were held without at least one of Roger Federer, Nadal or Djokovic, who had combined to win the past 13 major trophies and 56 of the last 67. Thiem is a 27-year-old from Austria who is ranked No. 3 and seeded No. 2 in New York. Zverev is a 23-year-old from Germany who is ranked No. 7 and seeded No. 5. One matchup within the matchup to look for is Zverev's big serving against Thiem's tough returning.
