Who can stop Wiggins at Worlds?

The eagerly awaited time trial at this year's Road World Championships takes place on Wednesday in Tuscany with Great Britain's Sir Bradley Wiggins heading a stellar list of contenders.

Wiggins got back to winning ways with victory in the Tour of Britain on Sunday, but the Olympic time trial champion will need to be at his very best to defeat a strong field in Italy.

Defending champion Tony Martin from Germany, four-time world champion Fabian Cancellara, who is nicknamed "Spartacus", America's Taylor Phinney and Briton Alex Dowsett will be among those trying to beat Wiggins to gold.

Watch live coverage of the world time trial on the red button and on the BBC Sport website from 12:15 BST on Wednesday 25 September.

Men's Elite Time Trial (Wed 25 Sep): Alex Dowsett, Sir Bradley Wiggins.

Women's Elite Road Race (Sat 28 Sep): Lizzie Armitstead, Katie Colclough, Nikki Harris, Lucy Garner.

Men's Elite Road Race (Sun 29 Sep): Mark Cavendish, Steve Cummings, Josh Edmondson, Chris Froome, Ian Stannard, Geraint Thomas, Jon Tiernan Locke, Sir Bradley Wiggins.