The six-foot-five, 230-pound forward did not record a point in the one game he played for San Jose this season. The Winnipeg native had one assist and 87 penalty minutes in 26 games with Worcester of the American Hockey League.
McLaren is expected to join the Maple Leafs at practice on Friday.
In 40 career NHL games, all with San Jose, McLaren has recorded one goal, five assists and 85 penalty minutes.
He was originally selected by San Jose in the seventh round (No. 203 overall) in the 2007 NHL entry draft.
It's cool when you think about how many great American players have played the game and the two players that were at that 18-game point streak and what they've done in their careers. It's pretty cool right now, but it was kind of overshadowed by the loss.
— Blackhawks forward Patrick Kane after breaking the record for longest point streak by an American-born player with a goal and an assist in a 3-2 overtime loss against the Kings