Best of the Wimbledon semifinals

Roger Federer lies on the court after falling during his semifinal match against Milos Raonic.

Andy Murray in action against Tomas Berdych.

Milos Raonic celebrates match point during against Roger Federer on Day 12 at Wimbledon.

Tomas Berdych in action during his match against Andy Murray.

Andy Murray celebrates match point against Tomas Berdych.

Tomas Berdych during his match against Andy Murray.

A general view on Murray Mound at the All England Lawn Tennis and Croquet Club.

Britain's Andy Murray reacts after winning the first set against the Czech Republic's Tomas Berdych during their semifinal match on the 12th day at Wimbledon.

Milos Raonic of Canada returns to Roger Federer of Switzerland during their semifinal match on Day 12 at Wimbledon.

A ball-kid holds tennis balls on Centre Court as Tomas Berdych plays against Andy Murray.

Heather Watson of Great Britain (partner of Henri Kontenen of Finland) serves during the mixed doubles quarterfinals match against Scott Lipsky of the U.S. and Alla Kudryavtseva of Russia.

Roger Federer reacts during his match against Milos Raonic.

Andy Murray of Britain returns to Tomas Berdych of the Czech Republic.

Milos Raonic of Canada celebrates a point against Roger Federer of Switzerland during their semifinal singles match on Day 12 at Wimbledon.

Roger Federer during his match against Milos Raonic.

Roger Federer serves against Milos Raonic.

Roger Federer returns to Milos Raonic.

Jude Law and Phillipa Coan watch Roger Federer's match against Milos Raonic.

Roger Federer of Switzerland reacts during his semifinal match against Milos Raonic.

Tomas Berdych of the Czech Republic returns to Andy Murray of Britain.

Switzerland's Roger Federer returns to Canada's Milos Raonic.

Serena Williams celebrates match point against Elena Vesnina.

Serena Williams (USA) in action during her match against Elena Vesnina (RUS) at Wimbledon semifinals.

Serena Williams (USA) celebrates match point against Elena Vesnina (RUS) at the Wimbledon semifinals.

Serena Williams in action during her match against Elena Vesnina.

Elena Vesnina (RUS) reacts during her match against Serena Williams.

Serena Williams (USA) turns the ball.

Elena Vesnina (RUS) stretches out to reach the ball.

Angelique Kerber celebrates after beating Venus Williams.

Venus Williams reacts after losing a point to Germany's Angelique Kerber.

Angelique Kerber celebrates match point against Venus Williams.

Angelique Kerber celebrates match point after defeating Serena Williams.

Angelique Kerber returns to Venus Williams.

Jul 7, 2016; London, United Kingdom; Venus Williams (USA) in action during her match against Angelique Kerber (GER) on day 11 of the 2016 The Championships Wimbledon. Mandatory Credit: Susan Mullane-USA TODAY Sports

Venus Williams during her match against Angelique Kerber.

Venus Williams reacts during her women's singles match against Angelique Kerber.

Venus Williams in action against Angelique Kerber.