Trophée Le Mat
Playing in eight straight seasons in the SHL, and capturing the Le Mat Trophy twice, Rosén embarked on a new challenge agreeing to a one-year contract with Russian club, HC Sochi of the KHL, on 3 May 2018. In the 2019–20 season, Rosén quickly adapted to the Russian game, registering 10 goals and 24 points through 57 regular season games, however was unable to help Sochi progress to the post-season.