Novak Djokovic v Jannik Sinner - The Italian beats World No.1 Djokovic for the first time following a classic encounter at the 2023 Nitto ATP Finals in Turin

What a performance! Sinner secures a very first win over Nole, hammering down a smash to take the deciding breaker by a 7-2 scoreline and come up trumps following a world-class showdown that crept into the fourth hour.

In terms of qualification, it’s still not decided tonight. The Green Group remains up for grabs but Sinner is well placed now to make the last four, particularly with this Italian crowd behind him.

Djokovic slaps a forehand dripping with a lack of belief into the net and it's 6-1 to Sinner in the breaker with two serves to come...

Once again Jannik snares an early mini break as he pounces on a second serve and scorches a crosscourt return that’s too hot to handle.

He then moves 3-0 up with an insurance break via a sublime forehand pass.

Another blistering forehand sees Djoker lob wide and big serve puts the Italian crowd in dreamland.

Nole belatedly gets on the board with a smash but it's a long way back at the change of ends, even for him.

There’s no late surge to pinch it from Jannik as Nole serves up a clean game.

It will be another tie break and you’d have to favour Djokovic here, not just for his immense record in breakers but for his wealth of experience in dealing with similar pressure moments in the past.

Sinner jumps into a backhand but lashes it way long to feel the heat at 15-30.

Djokovic fails to make it count with a donation of a backhand wide and Sinner takes full advantage with a humongous forehand up the line.

The Serb then returns long but doesn’t hear it as the roar from the crowd drowns out the call. He challenges but loses out and takes his seat to boos. He has a chuckle and even pretends to orchestrate the crowds anti-Djoker message!

Djokovic reaches the 20-mark for aces as he darts through a game to 15 to remain firmly in the hunt to make it two wins from two in Turin.

If you thought Jannik was going to fade after seeing a big chance go to waste, then think again.

He absolutely hammers a sensational backhand winner up the line and wrenches a pulsating rally his way with a magnificent crosscourt forehand before picking up some cheap points via the serve to clinch a morale-boosting love hold heading into the dying embers of this outstanding tennis match.

There’s no drama this time around as Djokovic backs up his break to tie the match once more courtesy of a timely clean hold.

It’s never easy to consolidate against Djokovic – and so it proves here.

The Serb counters Jannik’s power with incredible depth to force an error on the baseline for 15-30 but the Italian responds with a quite wonderful drop shot.

A forehand into the tramlines coughs up a breakpoint but a stonking forehand up the line drags him to deuce.

Djokovic senses his moment, however, and locks-in for some lung-bursting rallies, luring a backhand long and one into the net to break for the very first time in the match.

It’s code red for Djokovic as Sinner unloads a pair of stunning returns - one deep and one to the feet, to force errors out of the Serb and clock up two break points.

The Italian senses his moment as Djoker lines up a second serve and Jannik jumps all over it, sizzling a sensational crosscourt winner to break in real style.

Djokovic looks to eat into a 30-0 deficit and unleashes as clean a crosscourt forehand as you’ll see.

He bosses the next point too but Sinner turns the tables with a stunning backhand on the stretch to dig out a pass and pave the way to a hold to 15 that keeps his nose in front.

Djokovic slams down an 18th ace via the T and closes out a lukewarm game to 15.

Darren Cahill obviously noted something in his man's demeanour there as he gives him a pep talk before he serves next, telling him to get fired up and show some energy.

The big forehand and the hefty serve have worked a treat for Jannik so far tonight. A 15th ace of the evening and another un-returnable serve ease him through a clean hold to maintain that scoreboard advantage.

The six-time champion channels his fury in the right way, blasting his way through a rapid hold with the minimum of fuss.