Ottawa Senators winger Colin Greening put an end to a four-and-a-hour marathon against the Pittsburgh Penguins, while the Boston Bruins crushed the New York Rangers in Sunday's top stories from the NHL playoffs.

Colin Greening scored 12:21 into double overtime as the Ottawa Senators edged the Pittsburgh Penguins 2-1 on Sunday in Game 3 of their Eastern Conference semifinal series.

Johnny Boychuk broke a tie midway through the second period, and the Boston Bruins scored two goals in the third to beat the New York Rangers 5-2 on Sunday and take a 2-0 lead in the Eastern Conference semifinal series.

Forward Colin Greening's dramatic double-overtime winner against the Pittsburgh Penguins Sunday night saved the Ottawa Senators from a big series hole, writes CBCSports.ca's Tim Wharnsby.

Don Cherry explained on Sunday why he didn't like the idea of NHLers suiting up for their respective countries in tournaments like the IIHF hockey worlds.

As Canadians celebrated the long weekend, we brought the action from Ottawa to them in an exciting game between the Senators and the Penguins. The energy between these two teams reached an all-time high and the Twitter world responded.

Even with a trio of rookie defenceman, the Boston Bruins have been impressive in building a 2-0 series lead against the New York Rangers.

Matej Stransky scored twice and Andrey Makarov made 29 saves Sunday as the MasterCard Memorial Cup host Saskatoon Blades picked up their first victory in more than two months by beating the Halifax Mooseheads 5-2.

Sweden won the world hockey championship Sunday, defeating Switzerland 5-1 in the gold-medal game in Stockholm. The United States took the bronze by beating Finland 3-2 in a shootout.

Paul Henderson is having such a good year, he threatened to steal Mats Sundin's No. 13 at the International Ice Hockey Hall of Fame induction in Stockholm, Sweden on Sunday.

A returning star and returning home are key points in Tim Wharnsby's fthree storylines for Sunday's Game 3 between the Ottawa Senators and Pittsburgh Penguins on Sunday night (CBC, CBCSports.ca, 7 p.m. ET).

Logan Couture scored a power-play goal 1:29 into overtime to help the San Jose Sharks bounce back from two losses in Los Angeles to beat the Kings 2-1 in Game 3 of their second-round series on Saturday night.

The Detroit Red Wings are heading home with a series split after a 4-1 win over the Blackhawks in Chicago on Saturday.

Ottawa Senators forward Jason Spezza says he expects to suit up in Game 3 against the Pittsburgh Penguins, even-keeled Mike Babcock proves prophetic, and the Sharks took a bite out of the Kings' series lead. All that and more in Saturday's Stanley Cup stories.

The NHL fined the San Jose Sharks $100,000 on Saturday for general manager Doug Wilson's public comments about forward Raffi Torres' suspension.