The UEFA Champions League (also known as the European Cup) is an annual club football competition organised by the Union of European Football Associations (UEFA) and contested by top-division European clubs, deciding the competition winners. The competition attracts an extensive television audience, not just in Europe, but throughout the world. The final of the tournament has been, in recent years, the most-watched annual sporting event in the world. The final of the 2012–13 tournament had the competition's highest TV ratings to date, drawing approximately 360 million television viewers.