Froome's 2017 Tour de France victory was his 'most hard-fought'

Chris Froome set to win fourth Tour de France after increasing lead

"I have to do everything right".

The athlete faces a tough 14-mile time trial in Marseille before what should hopefully be a straightforward journey to Sunday's closing stage.

American Taylor Phinney has posted the best provisional time in the Marseille time trial, in 29 minutes and 21 seconds. Ultimately, nine riders, including eventual Boasson Hagen, got away.

With less than 10km remaining, and the riders behind limited to scrapping for the minor placings, the attacks started from the front group and a game of cat-and-mouse began. While the gap between the two isn't the largest, Bardet is basically going to have to put together the time trial of his life.

Boasson Hagen eventually crossed the finishing line in Salon-de-Provence in solo fashion.

His cause was helped by the disqualification of Peter Sagan, the green jersey victor for the past five years, after stage 4 and a crash that took German sprinter Marcel Kittel, victor of five stages this year, out of the race on stage 17. "You just have to give it everything and not ask any questions", said the 27-year-old. I was in good position on the climb and then when we came down I was in the breakaway. "I also had quite good confidence for the sprint but it was nicer to make the decision before and not end up with a photo finish again".

"I had studied the route and I knew I had to go right in that last roundabout".

"I've had a great Tour, it's my desire to finish it as well as possible".

"It had been full gas for two days in the Alps so grateful it was a less insane stage today and we could sit on the wheels a bit and recover some energy ahead of tomorrow's time trial".

Britain's Chris Froome, wearing the overall leader's yellow jersey, rides in the pack during the 19th stage of the Tour de France.

Bardet started the day second overall but only narrowly escaped the double humiliation of being pushed off the podium by Landa and overtaken by a charging Froome, who started his time-trial two minutes after the Frenchman. It's a very fast 22km course. I certainly think someone like Primoz Roglic and Tony Martin could be fighting for a stage win.

After battling for 3,390 km around France, slogging up the climbs of the Jura, the Pyrenees, Massif central and finally the Alps, Froome has emerged 23 seconds clear of his closest rival and admits that the yellow jersey is now his to lose.

The setting could not be any more picturesque in Marseille with a course that traces the Old Port, the Corniche and even goes past the Notre Damme de la Garde Basilica at the top of the climb.