Tennis Star Juan Martin del Potro Scores High On Sex Appeal
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Only 20 years old, del Potro sports major talent, but still has the slightly doofy, untarnished look of an innocent. You know, kind of like Michael Phelps did before all that strippers-and-pot unpleasantness! Click through our gallery of del Potro's to-die-for muscles and sexy smile ... plus, some sweet pics of del Potro and Federer to save for the spank bank!