London, July 4: Top-seeded Novak Djokovic of Serbia beat world No. 7 Tomas Berdych of the Czech Republic 7-6(5), 6-4, 6-3, to enter Wimbledon semi-final on Wednesday.
In another quarter-final, Juan Martin Del Potro beat No. 4 David Ferrer 6-2, 6-4, 7-6(5) to book his maiden Wimbledon semi-final berth.
Del Porto will meet Djokovic and feels he has to be in his best against the world No. 1.
Murray wins a tough QF match
Andy Murray of Britain rejoices after winning a point against Spain's Fernando Verdasco during their quarterfinal clash in Wimbledon.
Djoker in action
Novak Djokovic of Serbia returns to Tomas Berdych of the Czech Republic during the men's singles quarterfinals in Wimbledon.
Djokovic reacts after victory
Novak Djokovic of Serbia reacts after beating Tomas Berdych of the Czech Republic in the men's singles quarterfinal in Wimbledon.
Del Potro gets an injury
Argentina's Juan Martin Del Potro receives medical treatment after during his quarterfinal match against David Ferrer of Spain in Wimbledon.
Del Potro wins quarters, to meet Djokovic in semis
Argentina's Juan Martin Del Potro reacts after defeating Spain's David Ferrer in the men's singles quarterfinals in Wimbledon.
Jerzy Janowicz rejoices
Jerzy Janowicz of Poland celebrates after beating his compatriot Lukasz Kubot during men's singles quarterfinals in Wimbledon.
Del Potro had beaten the Serbian to win the bronze medal at the London 2012 Olympics here at the All England Club and also won their most recent encounter in Indian Wells Masters in March.
In the other quarterfinals, despite loosing first two sets against unseeded Fernando Verdasco, Andy Murray clawed his way back to win 4-6, 3-6, 6-1, 6-4, 7-5.
Janowicz beat his Polish counterpart Lukasz Kubot 7-5, 6-4, 6-4 in another quarter-final match. He will take on Murray in the semis on Thursday.
Men's semi-final line-up:
1. Novak Djokovic (1) vs Juan Del Potro (8)
2. Andy Murray (2) vs Jerzy Janowicz (24)
Women's semi-final line-up:
1. Marion Bartoli (15) vs Kristen Flipkens (20)
2. Agnieszka Radwanska (4) vs Sabine Lisicki (23)
Men's doubles semi-final line-up:
1. Leander Paes / Radek Stepanek (4) vs Ivan Dodig / Marcelo Melo (12)
2. B. Bryan / M. Bryan (1) vs Rohan Bopanna / Édouard Roger-Vasselin (14)