UEFA Euro 2012 pitch at every match, with additional cameras following activities around the game, such as team arrivals at the stadiums, interviews, and media conferences. The official Euro 2012 broadcasting centre was located at the Expo XXI International Centre in Warsaw. The tournament was broadcast live by around 100 TV channels covering the whole world. 150,000,000 people were expected to watch the matches each day. After Poland and Ukraine were chosen by a vote of the UEFA Executive Committee as host countries for Euro 2012, several issues arose, which jeopardised the Polish/Ukrainian host status. In Ukraine there were financial difficulties related to
UEFA Euro 2012 World Cup. Each national team had to submit a squad of 23 players, three of whom must be goalkeepers, at least ten days before the opening match of the tournament. If a player became injured or ill severely enough to prevent his participation in the tournament before his team's first match, he would be replaced by another player. On 20 December 2011, UEFA named twelve referees and four fourth officials for Euro 2012. On 27 March 2012, UEFA issued the full list of 80 referees to be used in Euro 2012, including the assistant referees, the additional assistant referees, and