BOSTON (CBS) – Bruins forward David Pastrnak returned to the ice Sunday morning, but he’s far from a sure thing for Game 4 of the team’s playoff series against the Carolina Hurricanes.

Pastrnak has missed the last two games for the Bruins, declared “unfit to participate”

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On Sunday, head coach Bruce Cassidy said Pastrnak is “50/50 at best” after the star forward took part in an optional skate.

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Boston hopes to take a 3-1 series lead over the Hurricanes on Monday at 8 p.m. in Toronto.