Roger Federer of Switzerland serves to Milos Raonic of Canada during their men's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Friday, July 4, 2014. (AP Photo/Pavel Golovkin)

Britain Wimbledon Tennis

Roger Federer of Switzerland serves to Milos Raonic of Canada during their men's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Friday, July 4, 2014. (AP Photo/Pavel Golovkin)

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