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Andrew Alberts re-signed Tuesday. ((Andy Marlin/Getty Images))

Boston Bruins defenceman Andrew Alberts agreed Tuesday to a multi-year contract extension.

Detailswere not disclosed.

"I am glad that we got this done early during the off-season," Alberts said. "Now I can concentrate on working out and preparing for next season."

Alberts, 25, posted 10 assists and a team-high 124 penalty minutes in 76 games for Boston last season, his second in the NHL.

He had one goal and seven points with 68 penalty minutes in 73 games as a rookie.

"He is a big, tough and physical player who, we think, is only going to get better," Bruins general manager Peter Chiarelli said.

Alberts was drafted out of Boston College in the sixth round (179th overall) by the Bruins in 2001.

With files from the Associated Press