Norrie can't repeat his earlier heroics at the net, but an excellent backhand takes him to 40-15.

Berrettini responds with a delightful drop shot, but Norrie recovers with a satisfying ace.

A superb rally, certainly the best of the contest, as Norrie picks up a half-volley before sprinting across the net to divert a volley in the opposite direction for 15-0.

Berrettini finds the net. 30-0.

A direct forehand from the baseline sees Berrettini hold for 5-5 in the second set. On we go.

It's a really great match-up this. It would almost be wrong for it not to go on a fair bit longer...

Berrettini cruises to a 40-0 lead, but some big groundstroke hits from Norrie force the Italian into the net.

Sealed with a smash. What a crucial game that could prove to be.

Two break points saved, and now the Briton is one break of serve away from taking the set. Easier said than done against Berrettini though...

Berrettini passes up the first break point opportunity as he lands into the tramlines, before Norrie produces a timely first serve to make deuce.

Well saved.

At 0-15, Berrettini begins to assert himself in a baseline rally but he goes long and lets Norrie off the hook.

He piles on teh pressure from their though, and it's two break points for Berrettini.

Norrie gets to 15-30 and the crowd sense the opportunity too, but a ferocious Berrettini serve and a sliced drop shot from the Italian turn the game around. A closing serve kills the game.

If Norrie can force an opening on the Berrettini serve here, he's in business.

Norrie returns and Berrettini attempts a drop shot. The Briton is on his toes and gets to it, though the Italian meets it with a volley.

Norrie then levels for 15-15 to the delight of the crowd. Can he put some pressure on?

Cameron Norrie is keeping his end of the bargain on serve.

A forehand winner down the line from Berrettini is the only blip on his serve, before an ace out wide settles the game.

Image source, Getty Images

A joyous point. Just not for Norrie, in the end.

Norrie is backed into a corner by the Berrettini serve but somehow gets the ball back in play. The Italian thinks he's hit a winner but Norrie scampers across the court to send it back - only for Berrettini to meet it at the net. He goes on to hold to love.

Can Norrie continue to stand firm on serve in this second set? Berrettini belts into the tramlines for 30-0 and another unforced error makes it 40-0.

It's an easy hold again for Norrie, as the Italian sends it into the net.

More good defence from Norrie just to get the Berrettini serve back in play, but as the Briton is forced back the Italian closes in - a volley at the net gets him up and running.

Boom. Another ace. This is relentless, and Berrettini holds as Norrie sends an attempted return well long.

Cameron Norrie can't afford another lapse on serve as he did in the first set while Berrettini is serving like he is.

And there's no sign that he's due another, as he responds to the Italian with his own hold to love.

Norrie is unable to return Berrettini's serve for 30-0, and two aces seal a rapid hold.

That's 10 aces in six service games so far for the Italian.

Very nice from Cameron Norrie. A well-executed drop shot for 40-0 and a volley at the net to wrap up the game.

Berrettini has won 90% of his first serve points, but just 29% on his second. That's where the opportunities lie for Norrie.

The British number two gets us back up and running.

That serve. Blimey.

Norrie gets a racquet to the Italian's final serve, but has little hope of managing to return it.

The top seed takes the first set.

An unforced error from Berrettini brings Norrie level, but the Italian bounds towards the net to fire a forehand winner for 30-15.

And top seed Matteo Berrettini, who has not been broken in 34 service games and counting, will now serve for the first set.