Roger Federer announces US Open return
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The Swiss will return to Arthur Ashe on August 25, seven years after his last appearance, for a special event with Roddick, Agassi and McEnroe.
Juan Martin del Potro of Argentina upset Roger Federer 7-5, 3-6, 7-6(8), 6-4 in the US Open tennis quarterfinals, denying tennis fans the chance at seeing the Swiss star play rival Rafael Nadal in the next round.