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Cameron Norrie wins 6-3 3-6 7-6 (7-2) 6-3 against Constant Lestienne
Norrie match finishes at 01:28 local time in Melbourne after earlier rain delays
Coco Gauff beats Emma Raducanu 6-3 7-6 (7-4)
Rafael Nadal loses 6-4 6-4 7-5 to Mackenzie McDonald
Defending champion Nadal struggles with injury during defeat
Wins for Daniil Medvedev, world number one Iga Swiatek & Stefanos Tsitsipas
*Norrie 6-3 3-6 2-5 Lestienne
Russell Fuller
Tennis correspondent at Melbourne Park
This set has been a rapid one. Norrie needs to do something to slow things down because if he is not careful, he will be out of the tournament in about half an hour.
*Norrie 6-3 3-6 2-5 Lestienne
Lestienne is on fire. A love hold with no trouble whatsoever, and he looks to be taking this third set with ease.
Norrie 6-3 3-6 2-4 Lestienne*
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
Sometimes Lestienne is a little rushed when that power comes from Norrie - but it has not happening enough.
You just never know if that game will be significant.
Norrie 6-3 3-6 2-4 Lestienne*
Better from Norrie, as he clambers back from 0-30 down to get the hold, sealing the deal with an ace.
*Norrie 6-3 3-6 1-4 Lestienne
The easiest game we've had in a while, as Lestienne rattles off a hold to 15.
The Grand Slam debutant is in complete control in this third set.
Norrie 6-3 3-6 1-3 Lestienne*
Russell Fuller
Tennis correspondent at Melbourne Park
Norrie is screaming at himself, He can't understand why he is creating so many unforced errors but they are just flying off his racquet.
Norrie 6-3 3-6 1-3 Lestienne*
The clock has now ticked past midnight in Melbourne and play is continuing.
Norrie takes a 30-0 lead on his serve but Lestienne once again pushes back. Soon, it's deuce as Lestienne's ball-striking continues to impress.
A forehand error from Norrie hands the Frenchman break point, and then another hands him the game.
Norrie is a frustrated man.
*Norrie 6-3 3-6 1-2 Lestienne
Lovely, lovely stuff from Lestienne, as from 0-30 down, he fights back to 30-all with a sweet drop shot. A wry smile appears on his face.
This time, however, it's Norrie who finds himself with a break point, one which is converted as Lestienne sends a backhand return a touch long.
Norrie 6-3 3-6 0-2 Lestienne*
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
Norrie's body language has gone a little bit negative, he's wound up and irritated.
He has lost all of his confidence and he has lost his way tactically.
It is extraordinary to witness.
Norrie 6-3 3-6 0-2 Lestienne*
Better from Norrie, but a battling game sees Lestienne earn a break point and the chance to gain even more of an upper hand in this third set.
And he gets it, as Norrie shoots a forehand wide.The Frenchman has now won six games in a row.
*Norrie 6-3 3-6 0-1 Lestienne
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Live Sports Extra
I don't know if Lestienne can remain at this level. I think he has brought Norrie down a good couple of notches.
*Norrie 6-3 3-6 0-1 Lestienne
A solid start to the third set for Lestienne, as he holds his first service game to 15.
Norrie needs to find something extra here.
Norrie 6-3 3-6 0-0 Lestienne*
David Law
Commentator on BBC Radio 5 Sports Extra
Norrie has buried a forehand in the net. It is really unusual to see Norrie hit shots like that.
That is a poor run of games.
Norrie 6-3 3-6 0-0 Lestienne*
Norrie really is stuck in that quicksand, and he's sinking as Lestienne goes 0-40 up with three break points.
The first break point goes begging but not the second. Lestienne gets the break and with it, the second set.
All square on Court 13.
*Norrie 6-3 3-5 Lestienne
Annabel Croft
Former British number one on BBC Radio 5 Sports Extra
You feel over the long haul he is going to come through this match, but Norrie is in some choppy waters, and he is a little stuck in quicksand.
*Norrie 6-3 3-5 Lestienne
Norrie's unforced error count is slowly starting to creep up again as he struggles to keep a lid on Lestienne.
But at 40-15 down, Norrie digs deep to bring himself level, and again after Lestienne gained the first advantage.
The Frenchman misses his chance again, but on advantage number three, gets the hold that puts him one game away from sealing the second set.
Norrie 6-3 3-4 Lestienne*
David Law
Commentator on BBC Radio 5 Sports Extra
Norrie has no idea at the moment about what to do with this guy. His brain is scrambled.
Norrie 6-3 3-4 Lestienne*
Lestienne continues to make life difficult for Norrie as he races into a 0-30 lead on the Brit's serve.
He soon finds himself with three break points as Norrie overcooks a drop shot and Lestienne is able to simply play the ball past him.
The Frenchman skews his first chance, and then his second, a backhand flying into the net.
He gets it on the third though. Lestienne goes a break up again.
*Norrie 6-3 3-3 Lestienne
Long from Norrie, and the chance to move clear in the second set passes him by.
Norrie 6-3 3-2 Lestienne*
Oh, that's a superb drop shot by Lestienne, who catches Norrie on his heels and the Briton never stands a chance of reaching it. Deuce.