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Famous friends help Savannah Guthrie prepare to face Roger Federer

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Next Monday, TODAY’s Savannah Guthrie and tennis star Jack Sock will team up against Savannah’s idol, Roger Federer, and Bill Gates. The exhibition tennis match will benefit the Roger Federer Foundation and its support of children’s education in Africa. But first, some famous friends like Jon Bon Jovi help keep Savannah from letting Federer get in her head!