Feliciano Lopez has said that he will have to step up his game to beat Andy Murray in the third round of the Australian Open on Saturday.
The 32-year-old Spaniard has a 0-7 record against the Wimbledon champion.
"It's tough to say what I really need to do to beat Andy," he told BBC Sport. "He's a great player. We played so many times and I never beat him.
"A couple of times I was close - the best match I played was at the US Open [in 2012] when I was really close, but I didn't get it.
"So I have to play the same but still a little bit better, because that was not enough."
Lopez is currently ranked 27th in the world.
