Thanks very much for joining me in following Andy's progress on the live blog this evening. Good night!
Good evening and welcome to MSN Sport's live blog of Andy Murray's US Open quarter final against Stanislas Wawrinka.
So, reigning US Open champion Andy Murray is defending a grand slam title for the first time ever. In his way stands Swiss number 9 seed Wawrinka who knocked him out of the US Open in 2010.
But, as he said, a lot has changed since then. Murray is certainly favourite but this will not be an easy match. Wawrinka has already knocked out number 5 seed Tomas Berdych and is approaching a career high in the singles rankings.
As is usual for afternoon sessions on Arthur Ashe, it is far from full. But this could be a real cracker. I am sensing a long match here.
The pair are out on court and have began knocking up. The winner faces either Novak Djokovic or Mikhail Youzhny who are in action later this evening.
So how has Andy faired against Wawrinka in the past? Well, the British number 1 lead the head-to-head 8-5, but was soundly beaten in their last match earlier this year in Monte Carlo.
Here we go. Stanislas Wawrinka to serve.
And we're off. First brilliant shot of the match as Murray brilliantly lobs Wawrinka.
Fantastic point from both players. If we have rallies like that throughout this match we are in for something special. Murray eventually nicks it by charging to the net to finish it off.
Whoosh! Murray looking in control of the rally then bang. Wawrinka cracks a superb forehand down the line. That one was travelling. 30-30.
Only took three games and we have the first sighting of Ivan Lendl.
Murray digs his way from 40-0 behind to force deuce. What a break this could be.
First pics of tonight's match...