Andy Murray is refusing to get ahead of himself after reaching the quarter-finals of the US Open by beating Jo-Wilfried Tsonga in straight sets.
The British number one sealed a hard-fought 7-5 7-5 6-4 victory at Flushing Meadows yesterday to set up a final-eight clash against Novak Djokovic.
"I don't feel like I'm that far away from playing my best tennis," The Guardian quotes Murray as saying. "It's still a long way from trying to win the tournament - nine sets now, three matches, and just try and take it one set at a time.
"I'm maybe five, six days away from potentially winning another Grand Slam. I know there is a lot of work to be done between now and then."
Murray defeated world number one Djokovic at Flushing Meadows in the 2012 final to win his first Grand Slam title.
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