This is already looking like a better day than yesterday's long and slow stage...
Matthias Friedemann leads the day's tactical escape...
Sky has already sent Christian Knees to do the chasing...
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Astana has sent Evan Huffman to do their share of the chasing...
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The peloton passes a mosque somewhere in the Omani desert...
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Andreas Schillinger leads the escape, but their lead won't go above five minutes...
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john Degenkolb needs a bike change, but it takes his mechanic and team manager to achieve it...
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Degenkolb gets going again - there's an air of intention in the race today...
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Rinaldo Nocentini has crashed with Alexander Wetterhall, but both men are unhurt...
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Joe Dombrowski is learning quickly - if you draw No.13, do what everyone else has done in the past...
Fabian Cancellara does a quick stretch while his mechanic changes the rear wheel...
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The peloton passes a stunning lunar landscape on the back roads of Oman...
When a World Champion has to fetch bottles, you know this is a very serious stage...
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Philippe Gilbert has got five bottles inside his precious arc-en-ciel jersey...
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Gilbert gives one bottle to Taylor Phinney...
Cadel Evans also gets a bottle from Gilbert - and this is no birthday present..!
All the stars are working today - Marcel Kittel collects water bottles for his Argos teamates...
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The escape passes a fort at Belkat Al Mouz at the foot of the final climb...
Richie Porte looks as if he's escaping with Albert Contador - in fact he's stalling while Chris Froome finds his climbing legs...
Contador has attacked before Froome gets across - he's chased by Nibali with three-kilometres to go...
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A stall in the racing allows Kenny Elissonde to emerge at the front, Froome having now got on-board...
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Contador attacks again with two-kilometres to go...
Contador has Rodriguez and Evans with him...
Rodriguez attacks now - the others are looking at Contador, who refuses to chase his compatriot...
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Froome is doing all the work in pursuit - but he'll jump away from Contador and Nibali before the finish...
Joachin Rodriguez wins stage four after three years of trying on the Green Mountain..!
Evans takes 3rd-place, having also dropped Contador and Nibali...
Chris Froome becomes the new race-leader..!