Cavendish to undergo tests after Vuelta exit
Mark Cavendish is out of the Tour of Spain after struggling in hot conditions during the fourth stage.
The Manx cyclist had dropped nearly 17 minutes behind the leaders in the Vuelta a Espana, and is the second rider from HTC Highroad to pull out of the event.
On his Twitter account, the Tour de France green jersey winner said he was drained, and that he'd undergo tests to find out more.
Cav said he is gutted to be out, but that he'd felt bad from the start of the Tour.