On Friday, the tour kicks off with a freestyle sprint in Val Müstair, Switzerland.

There, the riders can earn up to 60 bonus seconds, which can be significant for the rest of the competition, which is a test of strength with eight competitions between 1 and 10 January.

- It is important for me to succeed well in the sprints.

That is perhaps the biggest challenge for me.

It is important to make a good prologue.

It is the first thing that happens tomorrow and I will try to be on my toes from the start, says Karlsson to SVT Sport from a wintry and sunny Val Müstair.