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Martina Hingis waits on Roger Federer, Stan Wawrinka to decide on Olympic mixed doubles - OlympicTalk | NBC Sports
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Switzerland's Roger Federer kisses compatriot Martina Hingis after defeating South Africa's Wayne Ferreira and Amanda Coetzer (not pictured) during the doubles rubber of the Hopman Cup at the Burswood Dome in Perth,
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Martina Hingis Reveals How Roger Federer changed From a “Wild Boy” to a Champion - EssentiallySports
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