Tour de France: stages 17, 18 and 19 - in pictures

Fans take snaps of Chris Froome in the yellow jersey during stage 17
Photograph: Tim De Waele/Corbis

Froome's fellow Briton Mark Cavendish in action during the 32km time trial Photograph: Doug Pensinger/Getty Images

Colombia's Nairo Quintana finishes sixth to stay in possession of the white jersey for the best young rider Photograph: Bryn Lennon/Getty Images

Alberto Contador rides strongly, but the Spaniard is beaten into second by Froome Photograph: Agence Zoom/Getty Images

Contador, right, is back in action during stage 18 Photograph: Christophe Ena/AP

Riders descend the from the Col de Sarenne Photograph: Joel Saget/AFP/Getty Images

Christophe Riblon celebrates France's first stage win of 2013 as he crosses the finish line Photograph: Pascal Guyot/AFP/Getty Images

Froome feels the strain on Alpe d'Huez, but is still able to extend his overall lead despite a time penalty ... Photograph: Agence Zoom/Getty Images

... these fans will have been delighted Photograph: Jeff Pachoud/AFP/Getty Images

Meanwhile in Kenya, Froome's mentor David Kinjah watches the action on TV with students of his training camp Photograph: Tony Karumba/AFP/Getty Images

The peloton are pictured on stage 19 as they negotiate Col du Glandon Photograph: Christophe Ena/AP

Pierre Rolland climbs Col de Tamie as the Frenchman attempts a lone assault Photograph: Laurent Cipriani/AP

Garmin-Sharp team rider Jack Bauer of New Zealand receives medical care after crashing Photograph: Eric Gaillard/Reuters

Movistar rider Rui Costa takes the stage win, his second of this year's race. Meanwhile, Froome edged closer to winning the Tour as he finished with his nearest rivals. Froome is 5min11sec ahead of Contador with one more mountain stage to go Photograph: Yoan Valat/EPA