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 feel that responsibility, I've felt it for the last two years. We core guys get a lot of minutes, we get a lot of opportunity out there. Our teammates, the organization and fans look to us to be the guys to put the puck in the net and to create momentum out there.
— Jordan Eberle on taking his game and the Edmonton Oilers to the next level