Each association must select players for its national representative team who hold the nationality of its country and who comply with the provisions of Articles 5 to 9 of the Regulations Governing the Application of the FIFA Statutes.
Each player taking part in the competition must be in possession of a valid passport or identity card of the country for which he is playing, containing a photograph and giving full particulars of his date of birth (day, month, year). Otherwise, he will not be allowed to take part in the competition. The referee or the UEFA match delegate may ask to see the passports/identity cards of the players listed on the match sheet.
All players (including any potential substitutes as referred to in Paragraph 44.04) must undergo a medical examination to the extent provided for by the UEFA Medical Regulations.
The UEFA administration decides on questions of player eligibility. Challenged decisions are dealt with by the UEFA Control, Ethics and Disciplinary Body.