Rosenborg BK goalkeeper Espen Johnsen is to undergo knee surgery to ensure his fitness for their UEFA Cup third-round tie against SL Benfica.
With the first leg in Portugal scheduled for the 26 February, the Norwegian international is to have an operation on Monday to correct a long-standing problem.
The Norwegian champions' medical team expect Johnsen to return early next month, with their bid for a 13th straight domestic title not due to begin until after they meet Benfica.
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