We'll end the live portion of our match coverage there, but there'll be all sorts through the night and in the morning on ABC Sport of course.

Until then (or if you can't be bothered reading world-class sport journalism) here's a little vignette of how that match went…

Maybe it should've been over in straight sets, but this mighty athlete has somehow rebounded from the misery of missing out on that to cling on to this match with white knuckles and eventually outlast a red-hot Alcaraz.

Zverev gets the win 6-1, 6-3, 6-7(2/7), 6-4 for his first victory over a top-five player at a grand slam.

It's remarkable that this feels like a comeback even though he never trailed, but the moment swing from him being one game away from winning the match in that third was just so stark that it really does feel like he was the one chasing for the last 90 minutes of this three-hour-and-five-minute match.

So what exactly happened after that brilliant start?

"I'm playing one of the best players in the world … and when you're up 6-1, 6-3, 5-2, you start thinking. We're all human," he says

"It's a great honour to play against guys like [Alcaraz] and when you're so close to winning, your brain starts going. It's not always helpful.

"I fought back quite well in the fourth set, didn't let go and then very happy to finish the match."

He says on top of fatigue, he's got a bit of blood under his toenails that is "quite painful" especially when he runs, but in the grand scheme of things it's not so bad.

"I feel fine," he jokes.

"I would much rather feel the way I feel with a bit of pain here and there and be in the semifinals than be at home.

"That's why I'm saying I'm fine and ready to get going."

And on semifinal opponent Daniil Medvedev…

"He's been kicking my arse a lot the last year or so. But maybe this'll be it, this'll be the place."

Zverev nabs the first point as Alcaraz slaps a forehand into the net. 15-0

Not the best approach shot, and Alcaraz drives a ball right at him and Zverev can't keep his volley down and into the court. 15-15

Big serve down the middle. 30-15

Zverev is walking like late-career Lleyton Hewitt between points. Alcaraz knows he's in pain, so he dinks in the drop shot and finishes off with the winner. 30-30

Alcaraz framed his return skyward, then dug out TWO overhead smashes from Zverev to get back into the point, but sent a regulation backhand long. 40-30

Match point for Zverev.

Three straight unforced errors on the backhand wing cost Alcaraz two break points, and Zverev once again gets a cross-court forehand low, and Alcaraz can't get it back.

All of a sudden, Zverev can serve for the match. What a moment in this match.

Zverev makes it to 40-0, but Alcaraz storms back, and Zverev pulls up a little lame as he chases after a drop shot.

Those blisters are clearly causing him problems, so that's another thing to add to his fatigue and no doubt some doubts seeping into his mind.

Alcaraz gets it back to deuce and plays a remarkable defensive point, then tries to force the ailing Zverev to run on the drop shot, but that proves his undoing as Zverev gets there and finishes the point. Raising a fist in triumph. First signs of life from him in a while.

But on game  point, Alcaraz comes up with a ripping backhand down the line to pass Zverev as he follows in a down-the-line forehand.

That gets it back to deuce, but the big German's big serve gets him back on top again.

And my word what a point to win the game. You can hear Zverev's dogs barking from here, but he still finds a running cross-court forehand that Alcaraz can't get back on the volley.

We're ostensibly at the halfway mark of the set as Zverev holds serve for 3-3.

He's staying in it, but Alcaraz is constantly surging with power and accuracy. Every game is a struggle for Zverev at the moment. Even on his serve.

You get the sense, if it stays on serve, Alcaraz is going to throw everything at Zverev at 5-4 and I'm not sure he can withstand it.

But Mike, the German that was rolling boulders at him is now lobbing pebbles at him.

Zverev tries to take a couple of extra seconds after an Alcaraz let.

Zverev only seems able to rip the occasional groundstroke, but he just can't do it for entire rallies at the moment, much less games or sets.

His legs look heavy even while he's just walking around the court.

Not only has he been broken, but Zverev's serve speed is down, as are his groundstrokes.

And now he's dumped a straightforward forehand volley into the net to give up his second break of the match.

There are just no depth on Zverev's groundstrokes and Alcaraz is taking control of points from the back of the court, even on the German's serve.

Zverev jumps out to 0-30, Alcaraz steps it up to get back to 15-30, but then just gets too cheeky with the point on his racquet.

A chipped forehand that should have been put away allows Zverev to stay in the rally and force the error from Alcaraz at the net.

Zverev gets a look at two break points.

He misses out on the first, but gets the second. This match throws us another twist.

Unlike in the third set, I don't have the faith that that will break the back of this match. Zverev looks properly spent. But it's still better to be playing from in front.

Looks like he's getting some treatment for a toe injury.

I would be stunned if this match doesn't go five sets. And if it does, remember, Zverev has played FIVE MORE HOURS at this tournament than Alcaraz.

Cumulative fatigue is real and I think that's partly why Zverev started so aggressively. He wanted this match over quickly.

The momentum of this match has completely shifted from when Carlos Alcaraz was serving to stay in the match at 5-2. That feels like a year ago.

Alcaraz's level has raised through the roof with a somewhat carefree approach, while Alex Zverev is very obviously feeling the pressure.

Alex Zverev can win the match in straight sets if he comes out on top here.

Carlos Alcaraz is just trying to stay alive. But all the momentum is on his side.

Zverev 1-0 Alcaraz: Oh no, Alcaraz has the point and mini-break on his racquet after a more shallow serve from Zverev, but tries an ill-timed drop shot and dumps it into the net.

Zverev 2-0 Alcaraz: Wow. Zverev goes down the line with the forehand, opening up the court for Alcaraz's backhand. Eventually Alcaraz makes the error on the forehand wing.

Zverev 2-1 Alcaraz: Big first serve down the middle and Zverev can't get it back.

Zverev 2-2 Alcaraz: Zverev follows in a good first serve, but his approach is woefully short and through the middle, and Alcaraz picks his spot.

Zverev 2-3 Alcaraz: Zverev makes a better approach, but Alcaraz digs himself out of trouble with a low ball that forces a powerless shot from Zverev.

Zverev 2-4 Alcaraz: Alcaraz goes behind Zverev and the German goes tumbling as Alcaraz finishes off the point at the net.

Zverev 2-5 Alcaraz: It's all Alcaraz at the moment as he follows in a good first serve and rips a forehand winner into the open court.

Zverev 2-6 Alcaraz: Huge miss on the first serve, and Alcaraz steps in on the second serve. It looked like Zverev took back control with a powerful off forehand, but Alcaraz found a sensational running forehand passing shot to set up four set points.

And he gets it back! Alcaraz takes the breaker!!

The Spaniard has, I think, just complained to the chair umpire about Zverev's time between serves. Alcaraz got a warning earlier, but Zverev, who bounces the ball like early Novak Djokovic, is yet to get one.

The umpire says he has been "very close".

he's a bit in his own head and perhaps tiring physically thanks to almost 16 hours on court at this tournament, but Zverev can still pull out monster serves when he needs.

That and a ripping cross-court forehand winner gets him a hold of serve to reach 5-6.

The crowd is completely in the Spaniard's camp right now, which has to be rough for Zverev, who's become the enemy simply by being on top.

Zverev probably isn't renowned as a Lleyton Hewitt-style gritty fighter, but he needs to rebound here.

He gets to 15-30, but gives it back with a sprayed forehand. 30-30

Great serving from Alcaraz into the deuce court, sliding away from Zverev, who can't get it back into play. 40-30

Zverev sends a forehand down the line at last, but again not with the sort of force we saw from him earlier in the match, allowing Alcaraz to reach it and force a tough volley. Zverev pulls it off on a tight angle, but Alcaraz gets there and finds the winner into the open court. We're all square in the third set.

Alcaraz gets the first point, ripping his forehand while Zverev does seem to be simply putting his in play. Completely not the way he's played up to this point. 0-15

Another forehand dumped into the net. He's all cross-court at the moment, where he was find the down-the-line winners earlier in the match. 0-30

Ace. Huge. 214kph down the middle. Fastest of the match. 15-30

Ace. Down the middle again. Clutch from Zverev, just nicking the side and back of the T. 30-30

Zverev uses his backhand to pin Alcaraz in the corner, but a bold slice forehand brings Zverev forward and he can't get anything on his approach shot from below the net, and Alcaraz forces the missed volley. 30-40

ALCARAZ BREAKS!! It was a safe first serve into the middle of the box, Alcaraz got his return deep, Zverev chipped it back and Alcaraz finished the point at the net.

This match is back to life at 4-5, Alcaraz to serve.

Zverev sends down his first double fault of the match and looks a little shaky in that game as the crowd gets behind Alcaraz, thirsting for a contest.

But the German remains perfect on serve and makes it 5-2 in the third set.

Zverev will no doubt get a little bit tight and definitely isn't ripping his groundstrokes the same way he was earlier in the match. Can that be an opening for Carlos Alcaraz?

He's nailed his first job by holding serve, and forcing Zverev to serve it out.

Honestly, I can't believe what I'm seeing.

I mean, Alex Zverev is a great tennis player, a former US Open finalist and a former world number two, but this level is ridiculous.

He's never beaten a top-five player at a major (and he still hasn't yet!) but he's currently all over Carlos Alcaraz after holding serve for 4-1.