Mathieu van der Poel (Alpecin-Deceuninck) heads into the Tour de France stage 5 individual time trial in Caen wearing the maillot jaune, but the 33-kilometre test will likely spell the end of his stint as race leader.
The Dutch rider is one of the best in the world when it comes to mass-start races, but has never shown himself to be exceptional in races against the clock.
