Olympic champion Andy Murray was forced to withdraw from the Toronto Masters yesterday with a knee injury, sending Canadian Milos Raonic into the quarter-finals of his home event.

Murray, who won a struggling second-round match on Wednesday after arriving in Canada on Tuesday from his gold-medal performance at the London Games, was treated for the knee during his victory over Italian Flavio Cipolla.

Andy Murray

The pullout came on a day of rain which prevented the start of third-round play with all seven remaining matches finally cancelled in the evening and more bad weather forecast for yesterday.

“I decided this morning,” said Murray. “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,” Murray said.

Sania-Bethanie win
Meanwhile, in Montreal, India’s Sania Mirza and Bethanie Mattek-Sands beat Julia Goerges of Germany and Czech Republic's Kveta Peschke 7-6(1) 6-3 to enter the second round of the Rogers Cup.

Fifth seeds Leander Paes and Jurgen Melzer received a walk-over over the Canadian-Serbian pair of Milos Raonic and Viktor Troicki in the second round.