Murray pulls out of Toronto

Andy Murray has withdrawn from the Rogers Cup prior to his match against Milos Raonic, citing a left knee injury.

The 25 year old had just two days to recover from his Olympic victory and travel to Toronto, whilst also having to adjust to a new surface.

Murray had to call the trainer on after the first set during the 6-1, 6-3 win over Flavio Cipolla due to the injury, and has now decided not to risk doing further damage.

I decided this morning. It was a bit sore yesterday. I came in today, saw the physios, they did some work on it, and it's still a bit sore.

I did a little warmup on the bike to try it out and it was still sore. I had to make a decision as to what I was going to do.

I spoke with the guys and decided the best thing was to rest and try and make sure I can actually let my body kind of adjust to the surface.

I'll be able to get as much treatment as possible. I wasn't able to to do anything to adjust to the surface (from Olympic grass) and get used to the movement at all.

I'll be able to do that and give it a few days and see how it feels.

The hard courts, for me anyway, are the hardest on my body. It always takes me a bit of time to get used to playing on them again. I hope it doesn't affect the next few weeks too much.

Now I have to take a couple days off without playing, so this (injury) may have set me back slightly.

The world number four will now hope he is fit to defend his Cincinnati title next week.