As July 1 inches closer, Mitch Marner looks more likely than ever to test the free-agent market. Despite taking a ton of heat for the Toronto Maple Leafs' latest playoff failure, he could still be the crown jewel of this year's unrestricted free agent class if he opts to leave his hometown team after nine seasons and two series wins.

Boston Bruins offseason rumors focus on Mitch Marner, available cap space, first-line center uncertainty, and urgency from management to rebuild a contender this summer.