Super Rugby is a men's professional rugby union club competition currently involving teams from Australia, Fiji, New Zealand and the Pacific Islands. It previously included teams from South Africa, Argentina, and Japan. Building on various Southern Hemisphere competitions dating back to the South Pacific Championship in 1986, with teams from a number of southern nations, the Super Rugby started as the Super 12 in the 1996 season with 12 teams from 3 nations: Australia, New Zealand, and South Africa. The Super 12 was established by SANZAR after the sport became professional in 1995. At its peak the tournament featured the top players from nations representing 16 of the 24 top-three finishes in the history of the Rugby World Cup, and is widely regarded as rugby union's strongest provincial competition. After the COVID-19 pandemic forced the competition to split into three, the reformed competition in 2021 and beyond will only include Australian and New Zealand clubs.