Murray plans to up game against Federer

Andy Murray is confident he will have little problem in stepping up his performance level for tomorrow’s Australian Open semi-final against Roger Federer, despite his low-key passage to the last four.

Murray has barely broken sweat in advancing to his fourth successive Melbourne semi, although he turned in a much-improved display against big-hitting Jeremy Chardy yesterday.

He accepts, though, that he will need to play better still against the 17-time major winner, who came through a tough five-setter against Jo-Wilfried Tsonga, with a place in Sunday’s final at stake.