Mikko Rantanen's second goal of the game was the overtime winner as the Colorado Avalanche erased a two-goal deficit and beat the Calgary Flames 3-2 Wednesday night.

The result put the Western Conference's No. 1 seed, Calgary, on the brink of elimination in the opening round of the Stanley Cup playoffs. The Avalanche lead the best-of-seven series 3-1. Game 5 will be Friday in Calgary.

Shortly after the Flames failed to convert on a power play, the Avalanche raced up the ice, and Carl Soderberg fed Rantanen a cross-ice pass that he one-timed for the winner. Avalanche goalie Philipp Grubauer made 35 saves, while Calgary netminder Mike Smith stopped 49 shots.