The 28-year-old does fit the Bruins' biggest need, a left-shot defender with an expiring contract. He can play both sides, like Dennis Seidenberg, but is not nearly the same player as the injured Bruin. It is not certain that Meszaros would unseat Matt Bartkowski for playing time on the left side of the second pairing.
Meszaros is 6-foot-2, 223 pounds, and has played in 38 games for the Flyers this season, averaging 17:22 of ice time, though he has been a healthy scratch at times for the Flyers. He has five goals and 12 assists this season. He carries a $4 million cap hit.
Meszaros joins Corey Potter as the Bruins' trade deadline pickups. Potter is a right-shot depth pickup, while Meszaros is a better player whom general manager Peter Chiarelli has familiarity with from his days in Ottawa.
He has also been a defensive partner of Zdeno Chara's, both back in Ottawa and at the Olympics with Slovakia.