What happened: The Colorado Avalanche and Vegas Golden Knights play Game 4 of their Western Conference playoff series tonight at 9 PM ET, with coverage on ESPN and the ESPN App. The matchup continues a hard-fought series between the two Western Conference rivals.

Why it matters: Each game in this series carries heavy weight, with a Stanley Cup Final berth on the line. Colorado has been installed as the in the series to date, but Vegas has remained within striking distance of advancing.

What to watch: Watch puck drop at 9 PM ET to see whether Colorado protects its favored status or Vegas seizes momentum heading deeper into the series.