Roger Federer vs Kei Nishikori, Australian Open Day 7 Live Score Match Updates

All the action from Day 7 of the Australian Open as Federer plays Nishikori later today!

Updated: 22 January 2017 19:04 IST - Published: 22 January 2017 07:53 IST

But wait.. there was one match left to go - and it's been a massive upset! Angelique Kerber, who was defending her title in Australia, crashes out 2-6,3-6 to CoCo Vandeweghe of the USA.

Australian Open 2017: Roger Federer defeats Kei Nishikori in mammoth five-setter Read

Roger Federer beats Kei Nishikori 6-7(4), 6-4, 6-1, 4-6, 6-3, to reach his 13th Australian Open quarter-final in 14 years.

So, so so close - and after a challenge, it's in! Roger Federer, with an ace, WINS the match against Kei Nishikori!

Nishikori stays in it! Apart from one stray shot, he hasn't done too much wrong here. He's broken Federer's serve already and needs to break it here, trailing 3-5 in the final set.

Roger Federer to serve for the match.

Federer holds! He has 23 aces now - to Nishikori's 5, but the younger player is using Federer's forehand effectively against him.

Roger Federer leads 5-2 and Nishikori serves to stay in the match.

Nishikori survives! He's fighting and how. Guess it's not over till it's over, but Federer has pulled out some great points here. Nishikori's positivity is the most impressive here, and the Japanese ace has reached deep for some wonderful shots.

There's a great angled one-handed backhand from Nishikori to deny Federer a point, but the Swiss follows that up with an ace in his service game. And there's a quick forehand winner to finish as Federer leads 4-1 in the final set. Is this it for Nishikori?

Nishikori's depth is humongous, and he holds at a pressure time. He's managed now to hold that service game, a big one. He's finally opened his account in the final set to trail 1-3.

This might as well be match point for Federer. He's about to break Nishikori again, and there are some incredibly fast shots being played on court! Just as Federer looks set to break, Nishikori comes up with a great shot.

MTO for the same injury that affected him during the Brisbane final... pic.twitter.com/eScQrssj8L
— José Morgado (@josemorgado) January 22, 2017

It's not just Federer - it has seemed like all of the old guard have outlasted their younger counterparts and how! We saw that in the Rafael Nadal - Sascha Zverev match, we're seeing it now with Kei Nishikori, and we could well see it again.

Nishikori's struggling a bit with the pain here, and he's getting some physio on court now. The fifth seed is aching and in obvious discomfort.

And follows that up with his twenty-first ace of the match!

Go Federer! The Swiss gets the first break of serve in the final set and leads 2-0.

Federer races to a hold but Nishikori's fighting and how!

And there's a new level of tennis here from Kei Nishikori! He wins the fourth 6-4 and we'll see a fifth set here on Rod Laver Arena...

Nishikori looks motivated. After breaking - and being spurred on, he leads 5-3 in the fourth. And he's one break away from taking the match to a fifth set. Whaaat??

You got to be kidding me. pic.twitter.com/3FNlIj0kXp
— José Morgado (@josemorgado) January 22, 2017

Whew! That was a long, long service game! After 10 minutes and 7 seconds, Kei Nishikori pulls out all the stops to hold serve.

Scores at 2-2 in the fourth.

Service hold for Federer, but Nishikori has been impressive! He reaches the ball behind him, and another great running forehand goes to Federer.

Who returns it speedily.

Game Federer, leads 2-1 on serve.

Nishikori holds. Scores level at 1-1.

Top tennis from Nishikori! Having lost the last 5 games on a roll, he pulls back for some well-placed shots and out of nowhere, a service hold. He's pulling himself back together quickly.

There's a rare outburst from the usually calm Nishikori, who throws his racquet to the ground. Not nice. But he quickly pulls together and engages Federer in a powerful rally.

Game Federer 1-0 in the fourth. And how does he seal it? Two back-to-back aces.