Petter Northug, one of many considered the greatest cross-country skier of all time.

In the track, he often sparred with Calle Halfvarsson, the two built up a rivalry.

- We haven't always liked each other very well on the tracks, but Petter is a super nice guy on the side.

After ending his career in December 2018, his career was marred by scandals for a while.

In 2020, he was caught and later sentenced for drugged driving.

Then Calle Halfvarsson was one of the first to get in touch.

- He is a good friend in addition to skiing, then you want to support it if it has problems, says Halfvarsson.

- It is clear that it is a serious crime he has committed, but it is no more than helping, he says.

Bergfeldt is released tomorrow at 17:00 in SVT Play and will also be broadcast at 21:00 in SVT1.