A backhand from Nadal has too much on it and Norrie saves that break point. Deuce.

Nadal won the opening six points of the match, but Norrie can get himself off the mark soon after. But not long after that a backhand from the Briton drifts wide and Nadal has the first break point of the match.

Image source, Getty Images

Russell Fuller
BBC tennis correspondent on BBC Radio 5 Live Sports Extra

This is too good by Rafa Nadal. A blistering start.

A cracking two-handed backhand down the line from Nadal and a beautiful forehand winner from the baseline gives Nadal 0-30 on Norrie's opening service game.

Chris: Come on Cam, play well.

A very routine hold to love for the world number two to get us going. Now our first look of the day at the Norrie serve.

Press play at the top to listen along.

Here we go. Rafael Nadal to serve first. Before the tournament he had been struggling with a lower back injury, but breezed through his opening two rounds.

He has said he has been 'tinkering' with his serve, but still begins the match with an ace.

Miles Maclagan
Former British Davis Cup player on BBC Radio 5 Live Sports Extra

This is a tough task for Cam. He's an interesting player. He's one that raises his level to what is needed. There are subtleties to his game. The pressure is all on Nadal, so Norrie can play with some freedom.

Russell Fuller
BBC tennis correspondent on BBC Radio 5 Live Sports Extra

The advantage that Cameron Norrie has is that he has more matches under his belt, but Rafa Nadal has won his two matches very comfortably. It's hard to see how Norrie can hurt him.

Rafael Nadal has 20 Grand Slams to his name, but just the solitary success in Melbourne as he won the 2009 Australian Open.

This is the first ever meeting between Nadal and Norrie. This is a free hit for the Brit, who has absolutely no pressure on him and can enjoy every second of playing in this marvellous, albeit practically empty, arena against one of the best players the sport has ever seen.

As always we want you to get involved on your thoughts on today's action.

Also, tell us who do you think will win the men's and women's titles and why?

Tweet us using #bbctennis to get involved.

Australian Open Chief Executive Craig Tiley was, however, confident that Djokovic will be able to overcome his injury and compete on Sunday.

"We'll see him. He's resilient, he's tough," Tiley told Australian broadcaster Channel Nine. "He'll wake up today and he'll figure out what it is and he'll go and get the appropriate treatment. The way he was, those two sets, I was pretty surprised.

"But I've seen him play here, this is his court, he gets comfortable on it and he just picks his game up and up and he's that good."

And an injury update today as Djokovic skipped practice on Saturday and was missing from the official training list at Melbourne Park.

Reports said Djokovic will undergo scans on Saturday before a decision on his title defence will be taken. Djokovic's team did not immediately respond to request for comment on the reports.

The Serbian was allowed the maximum time possible to recover by the organisers and his match against Canadian Raonic was listed as the final match of Sunday evening on Rod Laver Arena.

Image source, Getty Images

Defending champion Novak Djokovic is unsure if he will be able to play in the fourth round of the Australian Open after he survived an injury scare to battle past American Taylor Fritz.

World number one Djokovic was hampered by a side injury that restricted his movement, although he still recorded a 7-6 (7-1) 6-4 3-6 4-6 6-2 victory.

Djokovic is set to meet 14th seed Milos Raonic in the next round, but said: "I know it's a tear and I don't know if I will recover from that in two days. I don't know if I will step on court."

The Serb, who is chasing a record-extending ninth men's singles title in Melbourne and a third in a row, added: "This is one of the most special wins in my life.

"It doesn't matter who I was up against or at what round, to pull this through is something I will remember for ever. In the third and fourth set I just served and couldn't do much with the returns. I was just putting in two first serves.

"I just tried to stay in there. I was hoping that whatever was happening was going to feel better and towards the end of the fourth it started to feel better."

Novak Djokovic won that match in five sets against Taylor Fritz, but we still don't know if the Serb will be able to play again in this tournament...

American Taylor Fritz has also said the organisers should have avoided a situation where his match with Novak Djokovic was interrupted.

Writing on Twitter earlier today, he said: "I never had a problem with fans leaving, we just shouldn’t be playing when there is a lockdown and we can’t finish the match before it starts. Leaving the court for 10 minutes in the middle of a set isn’t something that should happen at a slam.

"The Australian Open has done an amazing job making this tournament happen and we are all very fortunate to be here and as I said before, it really didn’t have any effect on that match, it's just ridiculous to leave court mid set."

We had bizarre scenes yesterday when, after a snap five-day coronavirus lockdown was announced for Victoria, fans had to leave during the fourth set of the five-setter involving Novak Djokovic and Taylor Fritz.

As you can see below, not everyone was too happy to have to leave the stadium mid-match.

We saw a cracking match yesterday as Dominic Thiem fought back from two sets down to beat home hope Nick Kyrgios in front of 5,000 passionate fans on John Cain Arena.

Watch as Kyrgios won the second set with an underarm serve ace, but ended up losing in five sets.

So no fans again, until at least Thursday, and it couldn't be more of a contrast to the drama we saw in Melbourne yesterday...