BOSTON (CBS) – The Bruins open up seeding round robin play on Sunday against the Philadelphia Flyers. But Boston will do so without starting goalie Tuukka Rask.

Rask will not play Sunday as head coach Bruce Cassidy said the netminder is feeling better, but still unfit to play.

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Cassidy expects Rask to return on Monday.

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Jaroslav Halak will get the start against Philadelphia.

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The Bruins and Flyers are set to open round robin play Sunday at 3 p.m. in Toronto.