Chris Froome all but secured a fourth Tour De France Cycle Race title by finishing third in 20th stage time-trial in Marseille as Maciej Bodnar took the stage victory.

Christopher Froome is now leading the overall race with the total time of 83 hours 55 minutes and 16 seconds.

Rigoberto Uran moved into second overall at 54 seconds, set to be the tightest winning Margin of Froome's four tour successes, while Romain Bardet held on for third by just one second ahead of Mikel Landa.

In what has been the closest tour battle in years, the top three riders started the day separated by less than 30 seconds, building hope for a Grandstand Finale in the steamy southern port city ahead of Sunday's Procession into Paris.

Maciej Bodnar won the 20th stage with the time of 28 minutes and 15 seconds.

Michal Kwiatkowski of Poland finished second while Chris Froome remained third.