The Bruins activated Loui Eriksson from injured reserve and sent forward Justin Florek to Providence Saturday.
The move allows Eriksson to return to the lineup after missing the last 15 games with his second concussion of the season.
Florek, who was recalled last week to play in place of Jordan Caron, played very well on the fourth line for the B’s over the last three games. The 6-foot-4 winger provided a screen on a Torey Krug goal, assisted a Daniel Paille  goal over the first two games of his callup and scored his first NHL  goal Thursday against the Kings.
Florek will likely be replaced by Shawn Thornton  against the Sharks as Thornton returns from a 15-game suspension.
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