The Penguins confirmed on their Twitter account that Crosby was released Monday. He will be out of the Penguins' lineup indefinitely.
Crosby suffered the injury in the first period of the Penguins' 2-0 win over the New York Islanders when he was struck in the mouth by a puck from a deflected slapshot.
The injury was as an unfortunate end to an otherwise stellar March for Crosby, who was named the NHL's first star of the month for putting up 25 points during the Penguins' 15-game winning streak. He currently leads the league with 56 points (15 goals, 41 assists).
The Eastern Conference-leading Penguins play their first game without Crosby on Tuesday night at home against Buffalo.