The New Zealand national men's rugby union team, officially nicknamed the All Blacks, represents New Zealand in men's rugby union, which is regarded as the country's national sport. The All Blacks are the holders of the Rugby World Cup and are the 2014 World Rugby Team of the Year. They have won over 76% of their Test matches and are the leading Test match points scorers of all time. They are the only international side with a winning record against every country they have played, and since their international debut in 1903 only five nations have defeated New Zealand in Test matches. Since the introduction of the World Rugby Rankings in October 2003, New Zealand has held number one ranking longer than all other teams combined.