Boston Bruins forwards David Pastrnak and Ondrej Kase missed practice Thursday after being deemed "unfit to participate," according to head coach Bruce Cassidy.

Cassidy said he originally expected both players to be available Thursday. He added that it is unclear how long the pair will be sidelined.

Both players missed practice Monday and Tuesday, but the two managed to hit the ice Wednesday. Pastrnak participated in a small group, while Kase practiced alone afterward.

The Bruins are set to depart to the Toronto hub in just under two weeks. They'll kick off their first round-robin game against the Philadelphia Flyers on Aug. 2.

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