The 4 Nations Face-Off is a round-robin tournament that will feature four national teams - Canada, Finland, Sweden and the United States - with NHL players from those nations filling rosters. Each team will play three games, with the top two teams playing in a winner-take-all final. Overtime will be a 10-minute, 3-on-3 sudden-death period. If the game is not decided in OT, there will be a three-round shootout. The 4 Nations Face-Off will be held in North America, splitting games between Bell Centre in Montreal and TD Garden in Boston. The full rosters were announced Wednesday.