Bruins 2, Sharks 1: David Krejci scored the game-winning goal with eight-tenths of a second remaining in the third period as Boston handed visiting San Jose its first regulation loss.Jarome Iginla added his first goal since joining the Bruins and Tuukka Rask made 38 saves as Boston won its fourth straight. Krejci redirected defenseman Adam McQuaid's booming shot past Antti Niemi as the clock ran down to pick up his 10th point in nine games.Patrick Marleau scored his eighth goal and Niemi stopped 15 shots for the Sharks, who dropped to 1-1-0 on their five-game road trip. San Jose averaged 4.9 goals in its first eight contests but has totaled one in the first two games of the trek.Krejci parked himself in the slot in the final seconds and got just enough of the puck to keep McQuaid's shot from sailing wide and push it between Niemi's pads before the horn sounded.The Bruins put just 10 shots on goal over the first two periods to San Jose's 25 but managed to register the only goal. Defenseman Dennis Seidenberg sent the puck toward the crease and Iginla won the scrum in front of the net for his first goal of the season with 1:12 left in the second.Boston squandered a chance 1 1/2 minutes earlier, when Niemi made a glove save to deny Patrice Bergeron on a 2-on-1 rush.The Sharks needed only 18 seconds in the third period to even things. Rask stopped Logan Couture's shot but let the rebound trickle away, and Marleau pounced on it and put it in the open net.GAME NOTEBOOK: San Jose D Dan Boyle (head) missed his fourth straight game since taking a hit from behind from St. Louis F Maxim Lapierre on Oct. 15. … Bruins RW Loui Eriksson (concussion) missed the game and is out indefinitely. … Krejci has two points in each of the last two games.