We're starting a boy band #NOTNSYNC Grigor Dimitrov Tommy Haas David Foster | By Roger Federer | Facebook
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Roger Federer, Grigor Dimitrov and Tommy Haas formed a boyband, but it wasn't very good - The Irish News
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Roger Federer and his Backhand Boys band takes social media by storm | Tennis News - Hindustan Times
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He Was Not That Well Known'- Grigor Dimitrov Explains How He Ended Up Having Roger Federer's Game Style - EssentiallySports
David Foster & Roger Federer, Novak Djokovic, Tommy Haas, Grigor Dimitrov - Hard to say I'm sorry | We thought Roger Federer, Novak Djokovic, Tommy Haas and Grigor Dimitrov can only play
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