Toronto Maple Leafs star Mitch Marner is expected to be the biggest name on the open market this summer in the NHL. Marner is likely to garner a massive deal that could see only a small handful of teams be truly interested in pursuing him.

If the Toronto Maple Leafs lose Marner, either through free agency or by trading his rights this summer, the team will need to seek a replacement option.

Would Toronto native Mitch Marner betray the Maple Leafs for a massive free agent contract with the Bruins? An NHL expert can't rule it out.