Andy Murray is confident he knows what to expect from Feliciano Lopez in their Wimbledon quarter-final on Wednesday.
Britain's fourth seed has practised with the world number 44, and beaten him in their four previous meetings.
"He serves very well, has a good slice backhand, and plays differently to a lot of other Spaniards," said Murray.
The match is second on Centre Court after third seed Roger Federer's meeting with Jo-Wilfried Tsonga.
Court One opens up with second seed Novak Djokovic's match against Australian teenager Bernard Tomic with Rafael Nadal's tie against Mardy Fish to follow.
Murray added: "Lopez likes coming forward a lot. I'll have a lot of passing shots to hit and need to return better than I did against Richard Gasquet on Monday."
Murray, 24, coasted into the last eight in just under two hours with a straight sets victory over the Frenchman, less than half the time it took Lopez to fight back from two sets down to beat Poland's Lukasz Kubot.
Murray told BBC Sport: "My last match was good and it's important I maintain that level. I need to return better in the early part of the match, but I'm happy with the way I'm serving and I've got to keep that up.
"Lopez is a tough player and he's been playing really well. He's got a good game for grass and has a big serve.
"It's going to be a very hard match. The key for me will be to return well and if I do that, I'll give myself a good chance of reaching the semi-finals."
The Scot added: "I know we're well into the second week now but I can't afford to approach things any differently.
"I have to keep calm, focused and take one match at a time. The closer you get to reaching the semis and final, the pressure builds a little bit, but the excitement is still the same."
Lopez, 29, a Wimbledon quarter-finalist in 2005 and 2008, beat eighth seed Andy Roddick in the third round and is relishing his chance to take on the Scot in his home Grand Slam.
"It is a great match to play," said Lopez. "Especially if you play the number one British player. I played Tim Henman once a few years ago when he played his last Wimbledon and it is was such a great experience."
Lopez beat Henman in that match, in the second round in 2007, but he knows overcoming Murray - who is looking to reach his third straight semi-final - will be a different proposition.
"Of course I know that if I want to beat Andy, then I have to play good," he explained. "But I have had a couple of good wins during this tournament. I beat Andy Roddick, and I had a great comeback against Kubot.
"I have to believe that I can win, and I am ready for the battle."
Lopez, who practised with Murray in the lead-up to the tournament, is a favourite of Murray's mother Judy, who calls him 'Deliciano' on her Twitter feed, but he is not expecting her backing on this occasion.
"She's funny," added Lopez. "She has a great personality. But on Wednesday it is going to be a family member playing against Deliciano. She won't be supporting me any more."
All of the men's top four seeds will be in action on Wednesday, with defending champion Nadal on course to meet Murray in the semi-finals after overcoming a foot injury as he saw off Juan Martin del Potro in the last 16.
Nadal, who is set to continue in the tournament after a MRI scan showed the problem is not serious, plays Fish of the United States in his next match, which will be the 10th seed's first Wimbledon quarter-final.
In the other half of the draw, Federer continues his bid for a seventh title when he takes on flamboyant Frenchman Tsonga, while Djokovic plays Australian qualifier Bernard Tomic who at 18 is the youngest man to reach this stage since Boris Becker in 1986.