Ryan Smyth's power-play tip-in at 3:07 of overtime lifted the Colorado Avalanche to a 4-3 preseason win over the Chicago Blackhawks on Sunday night. Smyth, at the left edge of the crease, redirected Paul Stastny's cross-ice feed past Cristobal Huet. Chicago's Martin Havlat scored a power-play goal with less than one second remaining in regulation to force the extra session.