Andy Murray has admitted that he faces a different challenge when he takes on Kevin Anderson in the fourth round at Wimbledon.
The 6ft 8in South African has similar traits to other tall players such as John Isner and Ivo Karlovic, but the number three seed believes that the 28-year-old's baseline game is better than the American's and the Croat's.
He told reporters: "He doesn't serve as big as Isner or Karlovic but he is probably better from the back of the court. He has a better return game too. There might be more chances to break but equally he will return better and make more balls when you are serving.
"I would also say he is more mobile than Karlovic. Isner and Kevin both move well on the hard courts and I have played them both. But most of the big guys who play from the back of the court are pretty good movers."
Murray faces Anderson on Centre Court later today.