Italy's Vincenzo Nibali climbs during the 15th stage of the Giro d'Italia, from Cesana to Col du Galibier

Nibali fights off Scarponi to defend Giro lead

By Alasdair Fotheringham IVREA, Italy (Reuters) - Italy's Vincenzo Nibali fended off several surprise attacks by his rivals to maintain his grip on the overall lead for a ninth straight day on Tuesday's hilly 1…

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