An ace brings Jannik Sinner to game point - but Alexander Zverev says not so fast and buries a forehand for deuce.

The German is hitting the ball ferociously so far. Can he keep this up?

Plenty for Sinner to ponder so far, but a big first serve ensures he gets to safety.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live

Sinner and his camp will be thinking, 'Zverev can't keep that level up', but he is unplayable right now.

Jannik Sinner falters first in a baseline exchange, sending a forehand wide to give Alexander Zverev 15-30.

Now there's a chance for the German to cause his opponent some trouble, but Sinner drags Zverev wide with a serve to restore parity.

Tim Henman
Former British number one on BBC One

There are lots of little match-ups in this contest. I wouldn’t have had Zverev outperforming Sinner on his forehand.

Image source, PA Media

Alexander Zverev eventually escapes by firing in a 133mph first serve.

What was that, about seven or eight minutes for the first game? Get yourselves comfy, folks.

Jonathan Jurejko
BBC Sport tennis news reporter at Wimbledon

That titanic opening set lasted one hour and five minutes.

If these two fellas continue serving like they have and chances stay at a premium, then we're going to have a long one.

Good job there isn't a big World Cup match on tonight...

Alexander Zverev looks to catch Jannik Sinner out with a drop shot of his own, but fails.

Sinner reaches deuce and an immediate opportunity to apply some pressure here.

The Italian clenches his fist after denying Zverev a game point. It's engrossing from the very start in set two!

A very promising 65-minute opening set between the top two seeds - and a brilliant start for Alexander Zverev.

Jannik Sinner begins his response with a delightful cross-court forehand winner for 15-15 on the German's serve, and executes a perfect drop shot from deep in the court for 30-30.

Andre Agassi
Former Wimbledon champion on BBC One

Image source, Getty Images

I lost my first three finals just like Zverev and when I finally came here and got over the line, I was an underdog. That helps. Playing against a guy like Sinner you need conviction, maybe that’s helping with the nerves.

Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live

When he needed it most, Zverev played two of the most amazing forehands down the line during that tie-break.

Andrew Castle
BBC Sport tennis commentator on BBC One

That snaps a 14-set losing streak against Sinner. Zverev is ahead in the Wimbledon final. We have a match on our hands here.

Alexander Zverev had lost his past 14 sets against Jannik Sinner.

He's also lost his past nine matches against the Italian.

Is that losing streak going to end today?

Jonathan Jurejko
BBC Sport tennis news reporter at Wimbledon

Zverev bends his knees and roars towards the grass as if he's won a match!

That's how important it was for the German second seed to take the lead.

What a set. And what a match we have on our hands!

Image source, PA Media

This time he gets it! A huge forehand winner down the line leaves Jannik Sinner with no chance.

The French Open champion is a set up in the Wimbledon final.

Jannik Sinner did well to stay in the point but Alexander Zverev eventually ends it with a blistering smash. Another set point for the German.

Nope, says Alexander Zverev. He replies with an ace of his own.

After saving set point, Jannik Sinner has one for himself after blasting down an ace.

Pat Cash
Former Wimbledon champion on BBC Radio 5 Live

Image source, Getty Images

This could be a long tie-break.

No mercy from Jannik Sinner. A drop shot draws Alexander Zverev in and the Italian lands a killer forehand into the empty court left behind.

If that return had made it over the net, it would have been set point Jannik Sinner. But it just falls short.

The Italian instead hands over the first set point with a wide forehand.

Can he get it?