Photos: Bill Gates, Roger Federer play at celebrity charity tennis
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Roger Federer: We are very lucky to have Bill Gates' support
Highlights: Roger Federer and Bill Gates play tennis together in
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Scientists learn how mosquitoes associate your scent with your swat
Watch: Roger Federer finds his perfect doubles partner- Bill Gates
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Tennis legend Roger Federer will play with Bill Gates in Seattle
First Bill Gates played tennis with Roger Federer. Now he's
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Roger Federer, Bill Gates, Savannah Guthrie, Jack Sock Raise $2.5
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