Despite being one of the favourites for the World Time Trial Championships, Dutchman Tom Dumoulin is heading into the race with a buttock muscle problem sustained on a training ride, according to Dutch media.

"It already played up on Sunday in the team time trial. I had hardly any bother on Monday but it came back again today (Tuesday)," Dumoulin reportedly told Dutch national television channel NOS.

Dumoulin will still start the time trial according to national coach Johan Lammerts, where the course would suit a fresh and fit Dumoulin, but we will have to wait and see what type of ride he produces.