Welcome to text coverage of Roger Federer's Australian Open quarter-final against Jo-Wilfried Tsonga.

The Aussie Open is LIVE on British Eurosport, and online.

And follow the latest news from the Aussie Open via our official Twitter feed.

Cracking match that one. So who will win out of Federer and Murray? Get in touch!

TSONGA 6-7(4) 6-4 6-7(4) 6-3 3-6 FEDERER - All over as Federer smashes home from the forecourt - the fans rise as one to applaud this contest.

Not a bad start as he creams a forehand winner into the corner, but the Frenchman mis-hits into the net as Federer comes forward on a mis-hit approach. There was a chance there for Tsonga. He goes 15-30 up but a big serve brings Fed level... and a save from behind the baseline drops just wide to give Federer match point number five. The first on his own serve.

TSONGA 6-7(4) 6-4 6-7(4) 6-3 3-5 FEDERER - Tsonga's 20th ace of the match (against six) puts him advantage up and Fed cannot return his following first serve to stay in this match! He must break now though.

A fourth match point for Federer goes begging as he sends a backhand into the net. That shot has let both players down somewhat in this set, but Tsonga more than Federer.

Tsonga goes advantage up twice, with Federer clawing him back to deuce as wife Mirka holds her head in her hands.

Tsonga saves it in another breathtaking exchange which sees him seal the crucial point with a volley at full stretch.

An incredible rally as Federer sends Tsonga scurrying behind the baseline, rescuing drives... Federer looks for a lob, with Tsonga's backhand smash keeping the ball in play... eventually a third match point is earned as the ball drops long.

Tsonga fires an ace up the middle for 15-15 but whips a forehand into the net from the tramline... and Federer then earns two match points! One is saved with a long return - Federer challenged the first serve - and the second when the Swiss returns into the net.

TSONGA 6-7(4) 6-4 6-7(4) 6-3 2-5 FEDERER - Federer using all his nous to play Tsonga around the court, finishing with a gentle volley to the sideline. /// ‏@wudder: "What do you 2 mean Tsonga never playing better? To me Wimby was even better where he left Roger powerless in his comeback!" Absolutely - I just said they were both playing at their peak, not that they have never played better tennis...

TSONGA 6-7(4) 6-4 6-7(4) 6-3 2-4 FEDERER - Tsonga drives a backhand at Federer, who is waiting at the net, but the Swiss knows to leave it to drop long. Tsonga wins a point for 15-30 but Federer has two double break points when a jaw-dropping backhand drop clips the netcord as it ghosts over and drops on the sideline. He somehow hits out with the court at his mercy on the forehand - and Tsonga steps up his game to hold!

TSONGA 6-7(4) 6-4 6-7(4) 6-3 1-4 FEDERER - Overhead volley to take the first point of his service game and he turns Tsonga around with his next winner. Very long from Federer on the forehand but a serve and volley takes him to the brink of the game. He hits another into the net, but he seals the hold for a three-game lead - still just a break though.

TSONGA 6-7(4) 6-4 6-7(4) 6-3 1-3 FEDERER - BREAK - Tsonga loses the first two points on his backhand but pulls one back on that same shot. Another long backhand gives Federer two break points - pointless challenge from Tsonga, it was well out. And another shocking backhand into the net gives Fed the break!

TSONGA 6-7(4) 6-4 6-7(4) 6-3 1-2 FEDERER - Set going very much with serve. Total points won: 139-136 in favour of Tsonga.

Andy Murray awaits the winner here - and the Scot will be more than happy to see this match go to five sets. He'll be praying for a 22-20 scoreline in games, or some such... no fifth-set tie-break in Melbourne, of course.

TSONGA 6-7(4) 6-4 6-7(4) 6-3 1-1 FEDERER - The Swiss 15-30 up. Tsonga serves his way to 40-30 before Federer takes us to deuce - then two aces level things up.

TSONGA 6-7(4) 6-4 6-7(4) 6-3 0-1 FEDERER - Federer keeps calm to open the decider with a hold.

You can watch this match LIVE on British Eurosport in HD, or online using the Eurosport Player.