Day six of Australian Open in Melbourne - third round
GB's Jack Draper wins 6-4 2-6 5-7 7-6 (7-5) 7-6 (10-8) in epic match against Aleksandar Vukic
Novak Djokovic, seeking record 25th major, beats Tomas Machac 6-1 6-4 6-4
Third seed Coco Gauff wins 6-4 6-2 against Leylah Fernandez
Injured Naomi Osaka retires against Belinda Bencic after losing first set
Britain's Jacob Fearnley beaten 6-3 6-4 6-4 by second seed Alexander Zverev
Use audio icon to listen to BBC Radio 5 Sports Extra commentary
Djokovic 6-1 0-0 Machac*
Oh dear.
Tomas Machac has got to dig deep here as Novak DJokovic brings up a break point after a lengthy rally from the baseline.
The 24-time Grand Slam champion has been impressive so far but Machac has beaten Djokovic before and needs to find a few winners of his own.
Alcaraz 6-2 6-4 6-7 (3-7) 6-2 Borges
Carlos Alcaraz earlier overcame Portugal's Nuno Borges 6-2 6-4 6-7 (3-7) 6-2 to progress to the fourth round, where he could meet British number one Jack Draper.
And the Spaniard shared this striking photo from Getty Images snapper Cameron Spencer after his victory.
Image source, Carlos Alcaraz*Gauff 5-4 Fernandez
Too eager from Coco Gauff, who lofts the ball wide before planting into the net. And there's another miss from the young American.
Leylah Fernandez is spared for at least one more game in this opening set.
Djokovic 6-1 Machac
Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds
Image source, Getty ImagesDjokovic is certainly a perfectionist.
He has been playing some beautiful tennis so far but his first service isn't feeling as natural as he would like.
He is also glancing up a lot, the crowd keeps moving a bit so that could be on his mind.
Gauff 5-3 Fernandez*
Coco Gauff has stamped out the unforced errors she was making earlier in the set and started to take advantage of Leylah Fernandez's struggles on serve. She's got the first set point of this match.
Djokovic 6-1 Machac
Thomas Machac fires into the net and that's the first set for Novak Djokovic.
If Machac can tighten up that error count you feel he'd be in the match here but as it stands it's looking pretty comfortable for Djokovic.
*Djokovic 5-1 Machac
Break point saved and Novak Djokovic brings up a set point when he lands an overhead volley.
*Djokovic 5-1 Machac
The scoreline does not really reflect just how competitive this match has been so far as Tomas Machac gets out to a 0-30 lead on the Novak Djokovic serve.
The Serb fights back for 30-30 but hands Machac a break-back point when he double faults.
Gauff 5-3 Fernandez*
No stopping those. An ace and a huge forehand winner help see Coco Gauff through her service game and take her one game away from the opening set.
*Djokovic 5-1 Machac
Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds
At only six games in, there have been 11 unforced errors in this game off the racquet of Tomas Machac.
Even though Novak Djokovic is playing some beautiful tennis, 11 unforced errors is quite a lot when you think that we are only six games in.
*Gauff 4-3 Fernandez
There you go. Coco Gauff strikes first on Margaret Court Arena.
Leylah Fernandez was clearly feeling the nerves there, struggling with her ball toss before pushing a backhand long.
*Djokovic 5-1 Machac
Most of these games have been back and forth with both players challenging for points but that was a very comfortable hold to love for Novak Djokovic and already he's serving for the first set.
Gauff 3-3 Fernandez*
Coco Gauff is the winner of a cracking 26-shot rally to pull as back to deuce and a miss from Leylah Fernandez brings up another break point.
Gauff 3-3 Fernandez*
No. Coco Gauff shouts an angry 'come on' as she sends a lacklustre return into the net. Deuce.
Djokovic 4-1 Machac*
Entertaining stuff on Rod Laver Arena as Novak Djokovic consolidates that break with a hold to 30.
Gauff 3-3 Fernandez*
Leylah Fernandez goes long and Coco Gauff has another break point.
She missed three in the second game, but can she grab this one?
*Djokovic 3-1 Machac
Woops. That high is followed by a double fault then another big rally from the baseline.
Tomas Machac's shot loops long but Novak Djokovic comedically blows the ball as it drops down to ensure it lands behind the baseline.
Gauff 3-3 Fernandez*
The ball clips the net twice for Leylah Fernandez and it pops up nicely for Coco Gauff to fire down the winner.
Fernandez finds the net, opening the door for Gauff at 15-30, before she levels with a big, booming cross-court backhand. 30-30.
*Djokovic 3-1 Machac
Ryan Harrison
Former American tennis player on BBC Radio 5 Live and BBC Sounds
That was incredible from Machac!
He did a full 360 earlier on in the rally, then he was running side to side at full stretch, and he was just able to get that last ball down low as Djokovic was trying to come into the net.
The point of the match - or maybe the point of the tournament - so far.
Image source, Getty Images*Djokovic 3-1 Machac
It's getting tasty this.
Novak Djokovic points to his ear to take the adulation from the crowd as Thomas Machac gets unlucky with a net cord. That would've otherwise been a brilliant winner but Djokovic had time to get back and return far into the corner.
Fist pumps from Andy Murray in the coaching pod.
