The injury occurred in the second period of Saturday's 3-2 win over the Winnipeg Jets, when he went down in front of the net on a hard, but clean, hit from defenseman Jacob Trouba. The high goal-scorer was going in for another tally, but could not get the shot off before taking the big hit. He exited the game and did not return at the Air Canada Centre.
This is not the first time that Matthews has missed an extended period of time, as he also went down for 20 games last season, including 10 for a separated right shoulder. Fortunately, this injury is to the opposite shoulder this time around, but Matthews did say that it was a similar ailment. The young star leads the Maple Leafs with 10 goals and 16 points so far this season, just behind Patrick Kane of the Chicago Blackhawks, who has 11 goals to lead the league as of Monday.
The Maple Leafs will move on without Matthews beginning on Monday night at home against the Calgary Flames.