In a Tuesday night USHL game against the Sioux City Musketeers, 19-year-old defenseman Andrew Prochno of the Sioux Falls Stampede fired a slap shot from the blue line that hit the goal post. Curiously, the referee blew his whistle to stop play, confusing fans and players on what appeared to be a routine occurrence during a hockey game. But there was nothing routine about it, because Prochno's shot off the iron split the puck in half on impact. Check out the first 55 seconds of this clip for one of the oddest moments you'll ever see on the ice: