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Juan Manuel Del Potro of Argentina celebrates - Source: Reuters -
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Argentina's Juan Martin del Potro powered his way past Juan Carlos Ferrero of Spain 6-3 6-3 6-3 on Wednesday to reach the quarter-finals of the US Open.
The tall sixth-seeded Argentine boomed 22 serves against Ferrero and never lost serve to the 2003 French Open champion in their Louis Armstrong Stadium match.
Del Potro, who reached his first grand slam semi-final at this year's French Open before falling to eventual winner Roger Federer, had 44 winners as he dominated his 24th-seeded opponent in two hours, eight minutes.
The 20-year-old del Potro will battle for a berth in the semi-finals against 16th seed Marin Cilic of Croatia, who ousted second-seeded Briton Andy Murray in straight sets.