Milos Raonic of Canada falls over as Roger Federer of Switzerland plays a return during their men's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Friday, July 4, 2014. (AP Photo/Ben Curtis)

Britain Wimbledon Tennis

Milos Raonic of Canada falls over as Roger Federer of Switzerland plays a return during their men's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Friday, July 4, 2014. (AP Photo/Ben Curtis)

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