Ivan Basso of Italy, left, Bradley Wiggins of Britain, wearing the overall leader's yellow jersey, Mark Cavendish of Britain, center rear, Tejay van Garderen of the US, wearing the best young rider's white jersey, and Peter Sagan of Slovakia, wearing the best sprinter's green jersey, right, wait for the start of the 18th stage of the Tour de France cycling race over 222.5 kilometers (138.3 miles) with start in Blagnac and finish in Brive-la-Gaillarde, France, Friday July 20, 2012. (AP Photo/Christophe Ena)