Laval Rocket provided a professional tryout to pass Riley Kidney, who would then join the team toward the playoffs.
Kidney, 19, has 100 points in 66 games this season with the Acadie-Bathurst Titan of the Quebec Major Junior Hockey League.
He was selected in the second round, 63rd overall, by the Montreal Canadiens in the 2021 draft.
Rocket also announced that forward Emil Heineman will return to Sweden to continue his fitness.
Heineman was acquired by the Canadian from the Calgary Flames in an exchange involving Tyler Toffoli in particular. He was devastated by injury and was no longer with the Rockets after signing a rookie contract with the Habs.
The Rockets will begin the North Division final against the Rochester Americans on Sunday at Place Bell.
Source: Radio-Canada