Remarkable, over 2000 votes and it is exactly the same in terms of votes of who you think will win this match. So, so hard to call right now. I still fancy a fourth set tie-break.
GAME FEDERER - 3-4. Murray loses his range on the lob and goes 40-0 behind. A small fightback to 40-30 doesn't bother R-Fed though who holds again.
Let's see if I can find another photo for you...
Hold that thought, Federer 0-30 up on the Murray serve.
Uh-oh. 0-40. Federer gees himself him. He senses blood here.
GAME FEDERER, 3-5. Murray on the brink again. Federer goes long before Murray pings in a 126mph serve to get it back to 30-40. But a brilliant rally ends with a Federer drop shot that Murray can't quite get enough on.
Murray has broken once, when Federer was last serving to win the match!
Hold on a second, arguably the shot of the match as Murray pulls off a staggering cross-court forehand before firing an effort at Federer who was stood at the net in the next point. 0-30.
He had two match points one hour ago. Time for a third.
A huge ace out wide wins it. Tough to take for Murray but thrilling tennis from Roger Federer.
Roger Federer is into the last four of the Australian Open for the 11th year in a row. That is some achievement.
In truth, Murray would have not fancied his chances of winning this tournament going into it following his back injury. He pretty much said as much as was playing down his chances but today showed what he can still produce even when not at the top of his game.
But Federer playing the type of tennis he did for the first two sets at least is very refreshing. Played some brilliant tennis and just reminded us all how good he was and still is.
Well guys, that's all from me. Thanks very much for your input this morning. A brilliant match, tough slog and Andy falls at the quarter-final stage but I'm sure he will be a major player in all the Grand Slams again this year.