The series is tied 1-1. Game 3 of the best-of-seven series is in Colorado on Saturday (10 p.m. ET; TNT, truTV, MAX). Miro Heiskanen had two goals, and Jake Oettinger made 28 saves for Dallas, the No. 1 seed in the Central Division. Valeri Nichushkin, Brandon Duhaime and Joel Kiviranta…