The Allsvenskan football club reports this on its website.
"As everyone could see, he went out bandaged (against Sirius) and we conducted an examination on Monday that shows Rasmus will most likely be out for the rest of the spring" says naprapath Kalle Barrling in a statement.
He continues:
"In addition, there will also be an absence for Patric Åslund, who unfortunately injured himself during training on Friday. Patric has seen a specialist who recommends that we perform a minor operation, which will be carried out shortly, to address the problem. This means he will likely miss the rest of the spring season."
Barrling does not want to disclose what kind of injuries are involved.