Heras signs with Liberty

BBC SPORT | Heras signs for Liberty

Liberty will pay US Postal £1.1 million to buy out the contract of Heras, one of the peloton's strongests climbers:

Heras played a key role in shepherding the American through the mountains on his way to a fifth straight victory earlier this year.

He confirmed his status as one of the world's best climbers with a brilliant performance on his way to victory in this year's Vuelta.

Some believe he is one of the few riders capable of challenging Armstrong in the Tour.