(Reuters) - Alberto Contador's Giro D'Italia hopes suffered a blow when the overall leader dislocated his shoulder after being involved in a high-speed pile-up at the end of the 183-km sixth stage on Thursday. The Spaniard hit the deck during a mass sprint to the finish in the Tuscan town of Castiglione Della Pescaia but remounted his bike to roll over the line in the same time as stage winner Andre Greipel. He still leads by two seconds in the general classification but struggled to pull on the Maglia Rosa at the presentation. More...