Canada doubles up on rival U.S. to complete perfect round robin in women's hockey

The Canadian women's hockey team beat the U.S. 4-2 to clinch the top spot in Group A on Tuesday at the Beijing Olympics.

Brianne Jenner scored twice, while captain Marie-Philip Poulin added a short-handed penalty shot marker and Jamie Lee Rattray also tallied for the Canadians.

WATCH | Poulin converts on penalty shot:

Canadian goalie Ann-Renée Desbiens made a whopping 51 saves, including 16 in a perfect first period where her team managed just four shots on net and was generally outplayed.

At one point, the Americans managed nearly two straight minutes of offensive zone time. U.S. forward Abbey Murphy was sprung in alone on Desbiens, but her attempt caught iron, bounced off of the goalie's back and rattled the post once again.

Seconds later, an American shot from the point squeaked under Desbiens' pads, but Canadian defender Renata Fast was there to save the day, clearing the puck from in the crease behind her netminder.

And despite all that, it was the Canadians sitting on a 1-0 lead at first intermission thanks to a power-play goal from Jenner.

Play finally opened up both ways during a wild second period that saw the archrivals trade chances through much of the frame.

The Americans got on the board first with a pair of goals just over two minutes apart to take a 2-1 lead. After Dani Cameranesi pounced on a rebound to equalize the game at one, Alex Carpenter put one past Desbiens on the power play to give the U.S. its lone lead.

However, it didn't last long. Thirty-four seconds later, Jenner once again crashed the net, this time taking a slick feed from forward Sarah Nurse and depositing it into the back of the net.

A penalty against Canadian defender Jocelyne Larocque provided some tense moments soon after, but in the