Marian Hossa scored at 4:31 of overtime, and the Chicago Blackhawks beat the Dallas Stars 4-3 on Sunday night for their sixth consecutive victory.
Jonathan Toews had a goal and two assists and NHL MVP Patrick Kane scored for the third time in four games, helping the Blackhawks sweep the home-and-home set with the Stars. Kane had a goal and an assist in Saturday night's 3-2 victory in Dallas.
The Stars had a power-play opportunity in overtime, but Scott Darling made a great kick save on Patrick Eaves to help kill it. Hossa then drove one by Kari Lehtonen for his sixth of the season.
>>Blues Blast Avalanche
Robby Fabbri and Jori Lehtera each scored in the first 3:35 and the Blues beat the Colorado Avalanche 5-1.
St. Louis entered with 26 goals in 12 games this season and hadn't scored more than two goals in any of its past six games.
Jake Allen stopped 22 shots for St. Louis, and the Blues killed off five power plays.
The Blues have won 10 of their last 12 games against Colorado dating to April 2011.
Matt Duchene got his sixth goal for Colorado. Semyon Varlamov had stopped 20 of 25 shots, and Calvin Pickard had three saves in the third period for the Avs.
Fabbri scored 1:37 into the first on a 2-on-1 break with Dmitrij Jaskin, beating Varlamov to the short side.
Lehtera scored from the slot off a pass from Carl Gunnarsson, getting his first goal 3:35 in.
David Perron scored with 54 seconds left in the second on a shot that deflected off Varlamov's glove and shoulder.
The Blues host Chicago on Wednesday.