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San Jose Sharks centre Joe Thornton (19) falls to the ice as he vies for the puck with Boston Bruins centre David Krejci (46) and defenceman Zdeno Chara (33) as Sharks centre Patrick Marleau (12) watches. Image Credit: AP

Boston Seth Griffith, Gregory Campbell and David Krejci scored in the third period, leading the Boston Bruins to a 5-3 victory over the San Jose Sharks on Tuesday night.

Brad Marchand and Torey Krug each had a power-play goal for Boston, which has at least four goals in each of their last three games after totaling just seven goals in their first five. Griffith’s tying score was his first career NHL goal.

After twice squandering one-goal leads and overcoming a late deficit themselves, the Bruins took the lead for good when Campbell tipped a pass from Daniel Paille through the legs of goaltender Antti Niemi with 9:18 left.

Patrice Bergeron drew a double-minor penalty with 4:09 remaining, but the Bruins were able to hold off the Sharks and Krejci added an empty-netter with 24.5 seconds to go.

Logan Couture had two goals and Joe Thornton scored against his former team as San Jose finished its East Coast road trip at 2-2-1. Niemi made 28 saves. Tuukka Rask made 30 saves for Boston.

Antti Raanta made 32 saves for Chicago in his first start of the season, and Patrick Kane scored two power-play goals.

Brandon Saad, Bryan Bickell and Kane scored in a flurry late in the first period.

Raanta was sharp while stepping in for Corey Crawford, who is day to day with an upper-body injury. It was Raanta’s second career shutout.

Among Raanta’s best saves were two point-blank stops on Philadelphia’s Claude Giroux and one on Matt Read late in the second period.

Philadelphia’s Steve Mason made 39 saves.