By Chineze Ogugua
Juan Martin del Potro will likely miss the rest of the season after he fractured his right kneecap in a heavy fall during his last-16 match against Borna Coric at the Shanghai Masters.
Del Potro who returned from a lengthy injury and reached the final of the US Open, had been expected to play in the season-ending ATP World Tour Finals in London in November.
His victor, Coric later lost to Serb Novak Djokovic 6-3 6-4 in the final yesterday in Shanghai.
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