Andy Roddick: Roddick stays alive at US Open, beats Fognini

Andy Roddick and David Ferrer move on to the Men's Round of 16 after winning their respective matches.Nobody knows how much longer this Andy Roddick Retirement Tour will last. It is already on borrowed time and with a fearsome Argentine, Juan Martin del Potro, awaiting him in the U.S. Open round of 16, things are only going to get much, much harder.By GREG BISHOP. Published: September 2, 2012. For stretches after Andy Roddick's latest victory, the one that extended his farewell tour

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