Novak Djokovic advanced to the Wimbledon semifinals for the fourth consecutive year, beating Tomas Berdych 7-6 (7-5), 6-4, 6-3 Wednesday.
The top-seeded Serb overcame a double break early in the second set to advance to Friday's semifinals, where he will play Juan Martin del Potro.
Djokovic won the Wimbledon title in 2011, but lost to eventual champion Roger Federer in last year's semifinals.
Just seconds before Djokovic finished, Juan Martin del Potro closed out a 6-2, 6-4, 7-6 (7-5) victory against David Ferrer with a huge running forehand on match point.
To do it, del Potro overcame an slip and hyperextension of his knee in the first game of the match.
Del Potro hurt his already injured left knee on the fifth point of the match, and called for a trainer to check it out. But he stayed in the match and quickly took command against the fourth-seeded Ferrer, who was trying to reach the Wimbledon semifinals for the first time.
Del Potro, who beat Roger Federer to win his only Grand Slam title at the 2009 U.S. Open, will face Djokovic.
In the other quarterfinals, Andy Murray faced Fernando Verdasco, and Polish compatriots Jerzy Janowicz and Lukasz Kubot squared off.