For one minute, the last minute of his season, Bruins center Gregory Campbell (at right in photo) helped kill a penalty while skating on a broken right leg. Then he slowly went to the bench to a standing ovation and to Boston’s locker room in the second period of the Bruins 2-1 win in double overtime over the Pittsburgh Penguins on Wednesday night. The Bruins will have to manage without their dependable center on their strong fourth line when they try to sweep the best-of-seven series tonight. Campbell suffered the broken leg during a power play in which he dove and blocked Evgeni Malkin’s hard shot from 50 feet on the right. It took him 10 seconds to get up, then he got in front of Malkin again and Kris Letang, forcing both to make passes. – AP