LONDON — Andy Murray had all of Britain on edge for five sets.
Juan Martin del Potro took five points to get the fans buzzing at Wimbledon.
Two victories in two different matches Wednesday sent Murray and del Potro onto the semifinals at the All England Club.
Murray completed his seventh career comeback from two sets down to top Fernando Verdasco, 4-6, 3-6, 6-1, 6-4, 7-5.
“Made some bad mistakes, poor choices on the court,” Murray said. “And then, I turned it around really well after that.”
Earlier on Centre Court, del Potro hyperextended his left knee and crumpled to the ground on the fifth point, but shook off the injury for a 6-2, 6-4, 7-6 (5) victory over No. 4 David Ferrer.
“To be honest, I didn’t want to retire (being) in the quarters for first time at Wimbledon,” del Potro said. “And that’s the reason for continuing play. The doctors gave me good anti-inflammatories.”
Del Potro’s next match is Friday against No. 1 Novak Djokovic, who took down No. 7 Tomas Berdych 7-6 (5), 6-4, 6-3 on Court 1.
Murray will play No. 24 Jerzy Janowicz, a 7-5, 6-4, 6-4 winner over Lukasz Kubot in the first Grand Slam meeting between two Polish men.
The women didn’t play singles Wednesday.
Going against the 54th-ranked Verdasco, Murray made things interesting for the British fans, looking for one of their own to call a Wimbledon champion for the first time in 77 years. He dropped the first two sets, unable to handle Verdasco’s pinpoint serves that reached as high as 136 mph.
In the sixth game of the fourth set, Murray saved a pair of break points — first with a service winner, then with one of his 13 aces. Three games later, he broke Verdasco, then served out the set. In the fifth set, the players held serve for 10 straight games. In the 11th, Murray broke, then served out the match at love.
“I played at a very high level,” said Verdasco, appearing in a Grand Slam quarterfinal for the first time since the 2010 U.S. Open. “And to not be able to win is painful, of course.”
It was Murray’s second comeback from two sets down at Wimbledon, adding to a 2008 victory over Richard Gasquet.
“Yeah, you’re obviously concerned,” Murray said. “You’re more concerned about losing the match, not thinking so much that, I’m going to lose at Wimbledon. You’re concerned how the match is going and that you may lose.”
Janowicz beat Kubot to become the first Polish man to reach a Grand Slam semifinal.