David Pastrnak, Mason Lohrei, and Charlie Coyle (empty net) scored for the Bruins. Joonas Korpisalo made 31 saves in a rare start in goal.

Mikko Rantanen went back West — but with the Dallas Stars this time following a brief stint in Carolina. And Bruins captain Brad Marchand is leaving Boston after 16 seasons to join the defending Stanley Cup champion Florida Panthers.

Mason Lohrei added a power-play goal for Boston and Charlie Coyle scored an empty-net shorthanded ... Anthony Beauvillier scored a short-handed goal for Pittsburgh and Rickard Rakell scored ...

Brad Marchand is the captain and the heart and soul of the Boston Bruins and is now the newest addition to their lengthy list of injuries.

PITTSBURGH (AP ... Mason Lohrei added a power-play goal for Boston and Charlie Coyle scored an empty-net shorthanded goal to give the Bruins a 3-1 lead in the final minute.

Marchand was hurt on March 1 when the Pittsburgh Penguins’ P.O. Joseph ... on the No. 2 line next to Elias Lindholm and Charlie Coyle during Tuesday’s morning skate. The Bruins are two points ...

David Pastrnak extended his NHL-leading point streak to 17 games with a goal and an assist, and the Boston Bruins held off the host Pittsburgh Penguins to win 3-2 on Saturday.

David Pastrnak has been carrying the Bruins’ offense and, on Sunday in Minnesota, the load became too heavy in the 1-0 loss.