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Bruins acquire three players at trade deadline

Bruins get Brian Rolston, Mike Mottau, and Greg Zanon

Brian Rolston (right) chased the puck for the Islanders in a game against the St. Louis Blues earlier this month.

Dilip Vishwanat/Getty Images

Brian Rolston (right) chased the puck for the Islanders in a game against the St. Louis Blues earlier this month.

At today’s NHL trade deadline, the Bruins have acquired Brian Rolston and Mike Mottau from the Islanders, and Greg Zanon from the Minnesota Wild.

Rolston played in Boston from 1999 to 2004. He scored 101 goals and 135 assists in 338 games for the Bruins. Rolston had cleared waivers.

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Mottau, the former Boston College star, is the left-shot depth defenseman the Bruins have wanted.

Zanon also is a left-shot defenseman, and is likely to be slated as a short-term fill-in for Johnny Boychuk, who is out with a suspected concussion. Given the nature of head injuries, it’s difficult to pinpoint when Boychuk might return.

“He’s a warrior,” said Peter Fish, Zanon’s agent.

In 39 games, Zanon has two goals and four assists while averaging 18:37 of ice time per appearance. He has 109 hits, second-most on the team behind Nick Schultz (121).

Zanon will be an unrestricted free agent at year’s end.

The Bruins sent low-level prospects Yannick Riendeau and Marc Cantin to the Islanders.

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