This is a list of the appearance leaders in men's rugby union test matches, listing the 92 players with over one hundred test caps. Rugby union requires only one nation to recognise a match as a test in order for it to be included in test statistics for that nation.[citation needed] The British and Irish Lions and Pacific Islanders do not represent a single country, but they are selected by a group of national unions and are recognised as test teams. Some national teams have sometimes granted test caps for matches against teams such as the invitational Barbarians side; these are included only if the union granted test caps for a particular match.