Campbell, the Bruins' fourth-line centre, broke his right leg in the second period of Boston's double-overtime win in Game 3 on Wednesday night. He is out for the rest of the playoffs.
Daugavins played in just one of Boston's first 15 post-season games this year.
Boston claimed Daugavins off waivers from the Ottawa Senators on March 27. He had no goals and one assist in six regular-season games with the Bruins after posting one goal and two assists in 19 games with the Senators.
Campbell had three goals and four assists in 15 playoff games.
I challenged him to a goalie fight when we chatted before the game, but he didn't want to go. It was strange to see him at the other end of the ice, but I'm sure he felt the same way looking down at our end.
— Vancouver goalie Eddie Lack joking about facing his former teammate Roberto Luongo after the Canucks' win against the Panthers