Andy Murray is upbeat on his chances of making a return to singles action and he feels he will be able to challenge the world’s best once again.

The three-time Grand Slam winner underwent hip surgery earlier this year and initially his focus was on simply being pain free, rather than making a return to competitive action.

Murray has since competed in doubles and he claimed the title at Queen’s Club alongside Feliciano Lopez.

The Scot played in the men’s doubles at Wimbledon with Pierre-Hugues Herbert but they were eliminated in the second round, and he is currently partnering superstar Serena Williams in the mixed doubles.

Previously, Murray has been fairly guarded on his hopes of returning to singles events but he has now appears more confident that he will be able to complete what would be a remarkable comeback.

“Why not?” said Murray, when asked whether he felt he could beat the best of the past and future.

“If someone can give me a reason why I shouldn’t be able to compete again then I would listen to it, but so far I haven’t really been given one.” “If, physically, I can get back to a good level my tennis is still fine,” he added.

“I’m sure that, tennis-wise, I will be able to keep up with guys.” Murray and Williams take on 14th seeds Fabrice Martin and Raquel Atawo on Tuesday and are 1.15 to win, with Martin and Atawo available at 5.00 to come out on top.