WILMINGTON — The Bruins will be without two players when they host the Penguins Saturday at TD Garden. Steven Kampfer, who scored in Thursday’s 2-1 win, left the game following a hard hit from Mattias Ritola and on Friday was diagnosed with a mild concussion. Coach Claude Julien said after Friday’s practice at Ristuccia Arena that the 22-year-old is expected to miss a week.

Patrice Bergeron, meanwhile, is not with the team and has travelled elsewhere due to “personal reasons,” according to the coach. He will not play against the Penguins. It will be the first game the 25-year-old has missed all season.