A lively Avalanche rally late in the third period Thursday night against the St. Louis Blues ended in shrugs after a video review overturned a would-be game-tying goal with less than three minutes remaining. Confusion set in on all sides. On Friday, the NHL admitted a blunder. “The goal should have counted,” the NHL said in a statement. Mikko Rantanen’s open-net goal seemed to tie the game at 4-4, but St.