The 2019 UEFA Nations League Finals was an international football tournament held in Portugal from 5 to 9 June 2019. The four national teams involved in the tournament were required to register a squad of 23 players, including three goalkeepers, by 26 May 2019, 10 days prior to the opening match of the tournament. Only players in these squads were eligible to take part in the tournament. In the event that a player on the submitted squad list suffered an injury or illness prior to his team's first match of the tournament, that player could be replaced, provided that the team doctor and a doctor from the UEFA Medical Committee both confirmed that the injury or illness is severe enough to prevent the player's participation in the tournament.