Lapierre, injured late in the Jan. 10 game against the Vancouver Canucks, was in the lineup on Thursday night when the Blues visited the New York Rangers. To make room on the roster, forward Adam Cracknell was sent down to Chicago of the AHL.
Lapierre, who has a lower-body injury, has six goals and three assists in 39 games.
Lapierre was assessed a major penalty for checking from behind and a game misconduct in the first period of the Blues' 6-2 home loss. He served the first game of the suspension while awaiting an in-person hearing Friday. The suspension will cost Lapierre $28,205.
Lapierre was given a game misconduct for hitting Boyle from behind in the first period of San Jose's 6-2 win Wednesday night. Boyle was knocked out on the play and taken off the ice on a stretcher before spending the night at the hospital.
The 28-year-old Lapierre had four goals and six assists in 48 games with Vancouver, and appeared in four playoff games.
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