The Toronto Maple Leafs sent Mitch Marner to the Vegas Golden Knights in a stunning sign-and-trade deal before NHL free agency begins on Tuesday.

The deal sees the Golden Knights send Nicolas Roy to the Toronto Maple Leafs in exchange for Marner, who will avoid free agency by signing an eight-year, $96 million contract in Vegas. Marner will run the Golden Knights $12 million per year, which is less than some expected him to fetch on the open market.