They have not played a single exhibition game together. The Olympic tournament has united nations and vindicated others torn apart.
Team USA burst out of the gates by pouncing on Slovenia in the first period.
In the absence of the NHL, which chose not to send players to Pyeongchang, the US men's national team is comprised of outcasts.
American hockey fans will now surely lament the fact NHL players are not in the Olympics, more than they already have been, and the great amount of relative unknowns on the United States roster. Greenway is the first black US men's hockey player in Olympics history.
USA coach Tony Granato wasn't impressed with his team's energy level at the end of regulation, while OAR captain Pavel Datsyuk preached better attention to defence, especially when holding a lead. That's a longshot compared to USA's usual powerhouse status.
USA coach Tony Granato showed a lot of trust in Greenway by having him center the top line with Ryan Stoa and captain Brian Gionta on his wings. He was on the ice for Slovenia's first goal, but not the final two. All 12 teams advance to the single-elimination portion of the tournament, but group play determines seeding; the victor of each group, plus the highest ranking runner-up, earn a first-round bye.
"I'm proud of my guys, I'm proud of the team", said Mursak, who played sporadically with the NHL's Detroit Red Wings between 2010 and 2012. In all, 15 players on Team USA have National Hockey League experience.
"Once we scored the first goal we really started to fly on the ice", Mursak told NBC's Pierre McGuire after the game.
Sporting News has live scoring updates and highlights for the opener. The Olympic Athletes from Russian Federation, meanwhile, shot out to a 2-0 lead over Slovakia in the first five minutes of the first period, only to concede two goals in short order later in the period and eventually fall 3-2 in regulation. He shared his story on breaking the odds and the color barrier at the 2018 Games. Greenway raced to the side of the net for the loose puck and scored on the rebound.
Despite the loss, the race for gold is still wide open. O'Neill's late goal is something for the Americans to build on in the second.
Goals from Jan Urbas and Mursak in the third period sent the tie into overtime. U.S. leads Slovenia 1-0 17:44 in.
Bobby Sanguinetti reacts after Slovenia scores the game-tying goal against the United States at the Olympic Winter Games PyeongChang 2018 on February 14, 2018 in Gangneung, South Korea. In that regard, the USA caught a break facing Slovenia first as opposed to the Russians, whom the Americans will face on Saturday. Here are the full starting lineups.