Boston goalie Tim Thomas and defenceman Andrew Ference have undergone surgery, the club announced on Saturday.
Bruins general manager Peter Chiarelli added that forward Vladimir Sobotka would have an operation Tuesday to stabilize his left shoulder.
Thomas, who began the season as the starter but didn't play in the post-season after being supplanted by rookie Tuukka Rask, had surgery for a torn labrum in his left hip. He is expected to need three to four months to recover. Ference had hernia surgery with an expected recovery time of two months.
The Bruins were eliminated from the Eastern Conference semifinals on May 14 in a 4-3 loss to the Philadelphia Flyers, who came back from 3-0 deficits in that game and in the series to advance.
While Sobotka is a restricted free agent, both Thomas and Ference are under contract for the next three seasons.