Peter Kennaugh is back in the UK after dropping out of the Giro d' Italia yesterday.
The Onchan rider had been suffering from muscle problems in his upper leg, and pulled out before starting yesterday's stage
Sky's team manager David Brailsford told Cycling Weekly, "We didn't want to take any chances with him this close to the end of the race.
"With one eye on the Olympics we decided the best course of action is get him back to Manchester."
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Castletown stay four points clear atop Division 2
Rugby: Vagabonds Ladies stay top with another victory
Vagabonds men and Douglas also take respective wins on home soil
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Bacchas B take important victory in battle for top-flight safety
FC Isle of Man torn apart at Barnoldswick Town
It's the Manx side's heaviest ever league defeat