The Boston Bruins are looking to even their series against the Buffalo Sabres in Game 4 of the opening round of the Stanley Cup Playoffs on Sunday afternoon.  Buffalo regained the series lead 2-1 on Thursday night after defeating the Bruins at TD Garden in Boston, Mass. In the game, Boston struck first in the second period with a goal from Tanner Jeannot, but Buffalo scored three unanswered goals by Bowen Byram, Alex Tuch, and Noah Ostlund to earn the 3-1 victory.  Prior to Game 3, the series was tied at one after each team picked up a win in Buffalo.  The Sabres took Game 1 on Sunday night 4-3 after scoring four straight goals in the final eight minutes of regulation. Tage Thompson led the surge with a pair of goals.  The Bruins bounced back and won Game 2 on Tuesday night 4-2 which was highlighted by a three-goal second period. The Sabres attempted to make a late comeback as they scored twice in the final seven minutes of action, but the Bruins held them off to earn the win.…