Toronto's starting goalie Matt Murray suffered another injury at the end of the season when Lucas Raymond ran into him, which sent Murray hard to the ice, hitting his head and getting a concussion.
The Maple Leafs were having some cap issues towards the end of the season, which saw them continue to sign goaltenders to "professional tryouts", but now that the salary cap is no longer active, they can carry three goaltenders, or technically 4 no problem.
The Toronto Marlies are about to start their playoffs as well, so with Joseph Woll acting as the backup, and Kallgren sitting in the stands watching, it will be interesting to see if one of them gets sent back in time for the start of the Marlies playoffs.