Roger Federer returns a shot during his easy win over Germany’s Philipp Kohlschreiber. Photo: AFP

Roger Federer sets up Juan Martin Del Potro quarter-final at US Open after Kohlschreiber stroll

Swiss maestro eases past German in straight sets

Topic |   US Open (tennis)

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Roger Federer returns a shot during his easy win over Germany’s Philipp Kohlschreiber. Photo: AFP
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