Period after period the Bruins faced adversity.

They fell behind, came back, lost Patrice Bergeron and then a third-period lead. Amidst it all, the Bruins fought their way to a 3-2 win over the Ottawa Senators in a wild game last night at the Garden.

With the win, the Bruins improve to 23-8-4 and are now six points ahead of Ottawa and Toronto in the Eastern Conference standings. But through all the excitement that the day’s events brought, there was a sense of concern after seeing Bergeron exit the game in the second period.

“Bergy is a big part of our team,” said winger Brad Marchand. “He plays a lot of minutes. When you see a guy go down you’re very worried, but we hope he’ll be all right.”

With the Bruins up 2-1 early in the second, Bergeron collided with Senators left winger Colin Greening. It appeared the Bruins center took an elbow to the head. He immediately left the game and didn’t return.

Bergeron has been the Bruins’ most consistent player this season, and in the third period, it looked like he was missed. Bodies and pucks were flying as the Senators, down 2-1, spent the opening minutes attacking Anton Khudobin. Finally, Sergei Gonchar missed wide and Andre Benoit looked like he hit the crossbar with a slap shot that made the Bruins goaltender sprawl out.

But as the B’s took over possession, the referees stopped play to review the shot. And just like that, the air was sucked out of the Garden crowd as Benoit was awarded the game-tying goal at 1:55.