MURRAY OUT - Zverev beats Murray 7-5 5-7 6-2 6-4
Jo-Wilfried Tsonga defeats Dan Evans 6-7 6-2 6-4 6-4
Roger Federer beats Kei Nishikori 6-7 6-4 6-1 4-6 6-3
Wins for Venus Williams, Pavlyuchenkova, Wawrinka
Federer 6-7 (4-7) 6-4 Nishikori*
Just so good. A floating away backhand from Federer lands plumb on the line - it was off a decent return from Nishikori too.
And the Japanse sends a backhand into the tram lines to give Rog the set and increase the glee levels around Rod Laver.
*Federer 6-7 (4-7) 5-4 Nishikori
Nishikori dinks in an unchaseable drop shot to hold - Federer can now serve for the set.
Federer 6-7 (4-7) 5-3 Nishikori*
The Federer army comes alive as the Swiss holds to love.
A game away from leveling the match.
Image source, Getty Images*Federer 6-7 (4-7) 4-3 Nishikori
If there's anything these Japanese fans like, it's Nishikori, chickens and healthy breakfast cereal.
If there's anything they don't like, it' their man going a break down.
Federer nudges ahead by forcing Nishikori on to the baseline and eking out an error.
Image source, Reuters
Image source, Getty ImagesFederer 6-7 (4-7) 3-3 Nishikori*
Federer looks to be plain sailing at 40-15 but Nishikori applies pressure at the net and the Swiss is wayward with a passing shot for deuce.
No bother - as two big serves pull R Fed out of the fire.
*Federer 6-7 (4-7) 2-3 Nishikori
This has woken up the crowd.
Somehow Federer gets to one that clips the cord and then, still at the net, slams a one-handed backhand overhead into an un-gettable location.
The 17th seed pops into the net though and Nishikori holds.
Federer 6-7 (4-7) 2-2 Nishikori*
John McEnroe, on TV commentary duty, is currently comparing Federer to Picasso.
And the Swiss needs just a few strokes of his brush to wrap up the game.
*Federer 6-7 (4-7) 1-2 Nishikori
Nishikori, at only 5ft 10in, has to use all of his available bounce to met a rising ball and he crunches it with a forehand winner.
The fifth seed is looking comfortable on his serve again.
Image source, ReutersFederer 6-7 (4-7) 1-1 Nishikori*
"Come on!" - that exclamation that transcends language, is uttered from the vocal chords of Federer as he steps in to plonk a sliding backhand drop shot.
And the Swiss holds a pair of aces for a love hold.
*Federer 6-7 (4-7) 0-1 Nishikori
Nishikori shrugs off his near-capitulation in that first set by finding his mojo again.
A sweet crosscourt forehand puts Federer in a muddle and then a backhand winner to wrap it up.
Federer 6-7 (4-7) Nishikori
Federer returns into the net for two set points...
And then a serve out wide gives Nishikori a set he should have wrapped up about 20 minutes ago.
Federer 6-6 (4-5) Nishikori*
Pumping baseline shots from Federer have Nishikori chasing and he can only answers with a lob that goes long. Mini-break back.
Only for the Japanese to break once more.
Federer 6-6 (2-3) Nishikori*
After three let serves, Federer finally hits a good one but there's a forehand winner for the Nishikori mini-break.
*Federer 6-6 (1-2) Nishikori
A chant of "let's go Roger, let's go" gets an outing from one vocal male in the crowd.
It goes to serve early in the breaker.
*Federer 6-6 Nishikori
Nishikori could have crumbled to a heap after that counter-punch to the belly from Federer.
But he regains his composure and races into 40-0 lead and finally shakes off the Swiss with an ace.
Federer 6-5 Nishikori*
Elegance personified.
Federer drops one deep and skips to the net to flick a delicate wrist for a drop-shot winner and game point.
Ace down the middle.
Five games on the bounce for the Swiss. Remarkable.
Image source, EPA*Federer 5-5 Nishikori
Never count out Roger Federer.
He was 5-1 down and now back on level terms as Nishikori seems to dwindle mentally.
The crowd love it. Absolutely love it.
Federer 4-5 Nishikori*
So, let's head over to Rod Laver where we have a barnstormer.
Four-time champ Roger Federer has pulled one of two breaks back against fifth seed Kei Nishikori, who is attempting to serve for the set.
Image source, Getty ImagesEvans 7-6 (7-4) 2-6 4-6 4-5 Tsonga
Jo-Wilfried Tsonga, who faces fourth seed Stan Wawrinka, speaks on court.
"Dan played good tennis and he had nothing to lose. It was difficult for me because he was hitting the ball really early. After that the game was pretty difficult, then I went over him and finished strong.
"I've played pretty good since the start of the tournament. It will be a good challenge against Stan Wawrinka - he's playing unbelievably.
How's your record against Stan Wawrinka? "No idea.
"I think he won four times and I won maybe two."
Image source, Reuters
Jeremy Bates
Former British number one on BBC Radio 5 live
That was just so impressive from Tsonga. Three colossal serves to set up his three match points, no nerves, no hesitation.