Mikko Rantanen scored in the first period after a terrific twirl move, Philipp Grubauer stopped 34 shots for his second shutout of the season and the high-flying Colorado Avalanche beat the Ottawa Senators 3-0. 

Valeri Nichushkin added a power-play goal in the third for an Avalanche team that's won five straight. 

Captain Gabriel Landeskog added an empty-netter with just over a minute remaining after the Senators pulled Marcus Hogberg for an extra skater. 

Ottawa dropped to 0-4-2 over its last six games.

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