John Isner lobbies Serena Williams
Message to Serena Williams from John Isner: Keep an eye on your mailbox.
Isner, America's highest ranked men's singles player, said he'd like to put himself in the sweepstakes to play mixed doubles with Williams at the London Olympics this summer.
He's not the only one.
Andy Roddick and the Bryan brothers are among those who also have expressed interest in playing with the two-time Olympic gold medalist.
"I may be the odd man out," Isner said on a conference call Tuesday ...
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