BOSTON — Duncan Keith scored two goals and assisted on another to help the Blackhawks rally from a two-goal deficit and beat the Boston Bruins 5-2 on Thursday night for their fifth straight win.The Bruins opened a 2-0 lead in the first 8:02, but Keith and Tomas Kopecky tied it before the end of the first period. Andrew Ladd gave the Hawks the lead 102 seconds into the second, and Keith made it 4-2 midway through the period to chase U.S. Olympic goalie Tim Thomas.Thomas stopped 20 of 24 shots before being replaced by Tuukka Rask, who made 11 saves. The only goal he allowed was Patrick Kane’s shot from the slot that made it 5-2 with just over two minutes left. Kane has 19 goals on the season and points in 10 straight games.Antti Niemi made 19 saves to help his team retake the top spot in the Western Conference, with 65 points to 63 for idle San Jose.The Bruins lost for the first time in 15 games in which they held a two-goal lead.Blake Wheeler had a goal and an assist for Boston, and Miroslav Satan scored his first goal since signing with the Bruins as a free agent on Saturday. The 35-year-old Satan had 17 goals in 65 games last season for Pittsburgh.Thomas had been 5-1 in his last six starts, including the Winter Classic that culminated in him being named to the U.S. Olympic team. But he struggled on Thursday and was pulled from the game after allowing Keith’s second goal on an unscreened wrist shot from the left point with 9:47 left in the second period.

NOTES—

The Blackhawks had not beaten Boston in regulation since 2003. … Kris Versteeg had a goal waved off with 7:25 left because he deflected it with a high stick. … The Hawks are 9-1-1 against the Eastern Conference.