Zdeno Chara suffered a significant injury during Monday night's loss to the St. Louis Blues in Game 4 of the Stanley Cup Final.
The Boston Bruins captain broke his jaw, a source familiar with the situation told The Athletic's Jeremy Rutherford on Tuesday.
Chara left the game after Blues forward Brayden Schenn took a shot that deflected off the defenseman's stick and up into his face early in the second period.
The 42-year-old blue-liner returned to the bench for the third period wearing a full face shield, but he didn't play another shift.
Bruins head coach Bruce Cassidy said postgame he wasn't sure if Chara would be available for Game 5 on Thursday, and that the rearguard would be evaluated in Boston.
