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A medic treats Canadian tennisman Milos Raonic for a right foot injury during his quarterfinal tennis match against Czech tennisman Tomas Berdych at the Monte-Carlo ATP Masters Series Tournament, on April 17, 2015 in Monaco. Raonic later withdrew from the match. AFP PHOTO / JEAN-CHRISTOPHE MAGNENET (Photo credit should read JEAN-CHRISTOPHE MAGNENET/AFP/Getty Images)

A medic treats Canadian tennisman Milos Raonic for a right foot injury during his quarterfinal tennis match against Czech tennisman Tomas Berdych at the Monte-Carlo ATP Masters Series Tournament, on April 17, 2015 in Monaco. Raonic later withdrew from the match.  AFP PHOTO / JEAN-CHRISTOPHE MAGNENET        (Photo credit should read JEAN-CHRISTOPHE MAGNENET/AFP/Getty Images)