Postpublished at 21:25 British Summer Time 3 September
If Alexander Zverev is going to do this it'll have to be the hard way. American Taylor Fritz will have the crowd behind him that's for sure.
Michael Emons is back to take you to the finish.
Summary
Home favourite Taylor Fritz beats Alexander Zverev 7-6 (7-2) 3-6 6-4 7-6 (7-3) in thrilling men's quarter-final in New York
American 12th seed Fritz through to first ever Grand Slam semi-final after four previous quarter-final losses
Fritz's victory followed compatriot Emma Navarro's 6-2 7-5 win over Spain's Paula Badosa in first of the women's semi-finals
Aryna Sabalenka faces Qinwen Zheng in night session before Frances Tiafoe plays Grigor Dimitrov - follow live scores here
Britain's Jack Draper plays Alex de Minaur in men's quarter-finals on Wednesday at approx 19:00 BST
Postpublished at 21:25 British Summer Time 3 September
'Huge moment for Fritz'published at 21:24 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 6-4 0-0 Zverev
David Law
Commentator on BBC Radio 5 Sports Extra and BBC SoundsAlexander Zverev nets and Taylor Fritz goes ahead.
What a huge moment in the career of this 26-year-old American who is now just a set away from his first-ever semi-final at a Grand Slam.
Game and third set - Fritzpublished at 21:23 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 6-4 0-0 Zverev
Image source, Getty ImagesListen to that roar!
Finally Taylor Fritz gets the job done in this game as Alexander Zverev nets.
That was such a topsy-turvy set and the American has won it. He leads 2-1.
Fifth set point for Fritzpublished at 21:22 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Taylor Fritz is fine doing the other part. Here's another chance for him...
Postpublished at 21:21 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Big first serve followed by a backhand that Fritz can do nothing about.
Alexander Zverev saves a fourth set point in the game to get back to deuce.
Another set point for Fritzpublished at 21:20 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Where was that a moment ago?! Taylor Fritz gets on the attack to grab himself another set point.
Zverev saves third set pointpublished at 21:19 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Image source, Getty ImagesInto the net from Taylor Fritz. Just too tentative.
Deuce. Alexander Zverev is showing no emotion down the other end.
Set point for Fritzpublished at 21:18 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Long goes Fritz after getting himself into the rally.
Last chance...
Postpublished at 21:17 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
David Law
Commentator on BBC Radio 5 Sports Extra and BBC SoundsThis sport messes with your mind!
Set points for Fritzpublished at 21:17 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
The first set point is saved with a thunderous serve.
Two to come...
Set points for Fritzpublished at 21:17 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
A third error goes flying into the stands!
Three set points for Taylor Fritz...
Postpublished at 21:16 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Now then!
Alexander Zverev misses two simple forehands and now he's under pressure.
Fritz holds servepublished at 21:13 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 5-4 Zverev*
Fritz clenches his fist. The crowd roars.
He digs himself out of danger.
Postpublished at 21:12 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 4-4 Zverev
Long goes Alexander Zverev on the backhand. That was a bit of a nothing shot.
Deuce.
Break point for Zverevpublished at 21:12 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 4-4 Zverev
Image source, Getty ImagesZverev wins a lung-buster of a point! That will be like a punch to the stomach of the American.
Here's a massive break point for Alexander Zverev...
Postpublished at 21:10 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 4-4 Zverev
Groans from the crowd as a second double fault in this game leaves the Fritz racquet.
30-30.
Big danger.
Postpublished at 21:09 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 4-4 Zverev
"Let's go Taylor, let's go," shouts a lone voice inside this cavernous arena and the rest muster a couple of claps.
Zverev holds serve, though, and still looks the more comfortable player.
Fritz holds servepublished at 21:04 British Summer Time 3 September
Fritz 7-6 (7-2) 3-6 4-3 Zverev*
Taylor Fritz judges wisely to leave a ball that creeps an inch or two wide. It seals him the game.
The Fritz support box can at least sit a little more comfortably for now.
Postpublished at 21:02 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 3-3 Zverev
The American crowd is trying to lift Taylor Fritz. He needs them here.
Alexander Zverev is hunting another break.
'The tide is turning'published at 21:01 British Summer Time 3 September
*Fritz 7-6 (7-2) 3-6 3-3 Zverev
David Law
Commentator on BBC Radio 5 Sports Extra and BBC SoundsFritz has gone into his shell. He needs to go after every ball as he did in the first set and a half. That's probably not natural for him but he's going to need to do it against a player like Zverev.
It really feels like the tide is turning.