Tampa Bay Lightning forward Jonathan Drouin will be out of the lineup Thursday night versus the Boston Bruins, head coach John Cooper told reporters.

Drouin was the victim of a headshot courtesy of New York Islanders blue-liner Calvin de Haan during Tuesday's 6-1 victory. De Haan received a major penalty on the play, but avoided supplemental discipline.

Cooper said Drouin will see team doctors for further evaluation, and didn't estimate a timetable for his return. Given that Drouin has a history of concussions, the latest injury is surely a cause for concern for the Lightning.

In 10 games this season, the 21-year-old has notched two goals and three assists.

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