"It's a tough match," said Murray. "It's very hard to get into a rhythm against someone like that. "He's made it very difficult for a lot of players over the last five or six years because he serves so well and makes you feel pretty uncomfortable on the court."He added: "There's going to be games where you might not even touch the ball where he's serving, so you need to try to stay in the zone and not lose focus on your service games. I'll need to serve well against him."A lot depends on the day when you're playing a guy that's 6ft 10in, because a lot of it is just reaction. Sometimes you'll see it, sometimes you might pick a couple serves in a row, sometimes you won't."