Poulin lifts Canada to comeback women's hockey gold
Canada's players celebrate after winning the Women's Ice Hockey Gold Medal Game between Canada and USA at the Bolshoy Ice Dome during the Sochi Winter Olympics on February 20, 2014 - by Alexander Nemenov
Poulin's golden goal came on the power play as she took a pass from Laura Fortino and snapped the puck past a sliding Jesse Vetter in goal for the Americans.
Canada had trailed 2-0 late in the third and appeared to be heading to defeat before coming to life to score two goals just 2:42 apart to send the game into extra time.
Brianne Jenner and Poulin both scored late to tie the game 2-2.
Poulin got the equalizing goal with just 54 seconds left on the clock by beating Vetter in close.
Canadian defenceman Rebecca Johnston backhanded the puck from the right corner towards the net and Vetter knocked it directly onto the stick of Poulin who made a quick move and fired it home to force overtime.
Poulin's second goal touched off wild celebrations as she was mobbed by her teammates while the crowd sang the national anthem 'O Canada'.
It was Canada's fourth Olympic women's title and 20th straight victory in the Winter Games dating back to 2002.
Poulin's goal came with USA forward Hilary Knight in the penalty box for dragging down Canada's Haley Wickenheiser on a breakaway.
Wickenheiser should have been awarded a penalty shot by referee Joy Tottman but it didn't matter as Poulin scored the clincher just 21 seconds into the powerplay.
The Americans had a chance to tuck the game away late in regulation but a long shot at an empty Canadian goal deflected off the post and out of harms way.
Just moments later Poulin scored her first of two on the night.
Switzerland beat Sweden 4-3 to win bronze.