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TENNIS on Twitter: "Federer, Dimitrov and Haas belt out "Hard to Say I'm Sorry" in must-watch karaoke performance. WATCH: https://t.co/z0Z46J3OVJ https://t.co/qDCE1smTP5" / Twitter
We thought that Roger Federer, Novak Djokovic, Tommy Haas and Grigor Dimitrov could only play tennis. How wrong was that assumption! Watch them, with... | By Village Voices Women's Choir - Facebook
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