On Thursday night in the middle of an NHL game between the Chicago Blackhawks and the Winnipeg Jets, an unfamiliar figure in a No. 90 Blackhawks jersey stepped onto the ice at the United Center.
"Hey, who's this guy?" an announcer joked.
That guy was Scott Foster, the team's emergency goalie, a 36-year-old accountant who hadn't played in a competitive hockey game in more than 10 years. He played hockey for Western Michigan University from 2002 to 2005 and plays in recreational "beer leagues." But never in the NHL.
Less than 15 minutes after taking the ice, Foster emerged a hockey legend.
"Scott Foster is officially somehow the most improbable, unlikely story in Chicago sports in March, knocking off Loyola's run to the Final Four. An accountant who plays in a beer league coming in and playing goalie and shutting down an actual NHL team for more than half a period," Matt Lindner wrote on Twitter.
But how did the father of two and recreational player end up trending on Twitter and stealing the spotlight from fellow Blackhawk Brent Seabrook, who played his 1,000th regular-season game that same night?
Foster is one of a small group of "emergency backup" goaltenders who are kept on hand, usually in the press box or the stands, in the highly unlikely event both regular goalies on the roster are hurt or otherwise unavailable.
It is "among hockey's great quirks," as Hockey News put it, "that it's the only pro sport with the potential for someone not on the roster to come out of the stands and actually play in the game." But "it takes a very rare set of circumstances … "