DENVER (AP) — Nathan MacKinnon finished his first career playoff hat trick with an empty-net goal to help the Colorado Avalanche pull away late for a 6-3 win over St. Louis in Game 2  after the Blues avoided a pregame virus scare that nearly sidelined several players. Joonas Donskoi scored twice and Brandon Saad added an empty-netter as the Avalanche took a 2-0 lead in the first-round playoff series. Since moving to Denver, Colorado is 13-1 all-time in best-of-seven postseason series when capturing the first two games. Sammy Blais, Brayden Schenn and Mike Hoffman had goals for St. Louis.

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