The 33-year-old Canadian will not only suit up for HC Sierre, but also have a role in their youth department. Castonguay just ended his second season with HC Sierre, recording 14 goals and 27 assists in 46 regular-season games this season.
Thibaut Monnet has also decided to play another season. The 39-year-old forward will play his second season with the Swiss League team this autumn. He put up ten goals and 19 assists in 44 regular-season games.