Brad Marchand is day-to-day with an upper-body injury after a collision with Florida Panthers forward Sam Bennett in Game 3 that the Boston Bruins said might have crossed the line.

The Bruins captain's status for Game 4 on Sunday is uncertain. He didn't practice with the team Saturday. Marchand is the Bruins' leading scorer in the playoffs with 10 points in 10 games (3 goals, 7 assists).