Tim Henman believes that Roger Federer and Rafael Nadal will be extremely tough to beat at Wimbledon. In the quarter-finals, the Swiss will face Kevin Anderson, while Nadal could face either Juan Martin del Potro or Gilles Simon. About the world no. 2, Henman said: 'He looked so solid, he was so solid coming through the first week and he’s continued that in the fourth round beating (Adrian) Mannarino in straight sets. You look at the top two, Federer and Nadal, it really is going to take something extraordinary to beat them. When I say extraordinary, it’s going to be someone like (John) Isner, (Milos) Raonic or (Kevin) Anderson, who just serve 40, 50, 60 aces to beat them. I just don’t see them losing to a conventional player. Someone that obviously plays well, good serve, solid from the back of the court, that’s just not going to get it done. I think their level is just so high that it will take one of them almost freak players to beat them. Otherwise, we’re going to be in a repeat of the 2008 final when Federer played Rafael Nadal.'
Speaking on BBC, Henman added: 'Everybody is different and he [Nadal] is strong and very intense. He really likes to get his footwork going early on and that is to get rid of the nervous tension. He wants to get his feet working early and then be aggressive with his shots. Federer is at the opposite end of the spectrum and looks like it his first practice session of the day when he comes on to court. He has to probably be a little bit more offensive and that is to do with his court position. On clay, he can stay beyond the baseline but grass is one of the toughest surfaces.'