Frida Karlsson broke through with three medals at the World Championships in Seefeld last winter, still as a junior and the silver at 10 km classic after pressing Johaug made a big impression in Norway. Frida Karlsson's interest is almost as great in Norway as in Sweden.

“It was a very sad message to receive. I hope that you will soon be back in competitions with us again. But taking care of health is most important and spent the time you need. Remember that you have many good years and skiing ahead of you. Warm greetings from Therese ”, the Norwegian writes in a text message to Aftonbladet.

Norwegian coach Ole Morten Iversen is on the same track.

- We would like to have the competition and it is a pity for Therese and the women's skiing, but Frida's health is most important, says Ole Morten Iversen.

"Must have a balance in training load and recovery"

The mother and manager Mia Karlsson does not want to comment on Frida Karlsson during the summer and autumn received signals if the health development has gone in the wrong direction. Instead, she refers to national team doctor Magnus Oscarsson.

- You have to have a balance in training load and recovery, and there are many parameters that play into it. Now that balance was not there, but what specific parameters we have looked at, which form the basis for this decision, I do not want to go into that, says Oscarsson to TT.

It is unclear how long Karlsson will be away from the competition tracks.

Nor is the Norwegian star Ingvild Flugstad Östberg, who won the World Cup last season, in Davos. She is also stopped for health reasons.