Rugby union in South Africa is centrally administered by the South African Rugby Union, which consists of fourteen provincial unions – the Blue Bulls Rugby Union, the Boland Rugby Union, the Border Rugby Football Union, the Eastern Province Rugby Union, the Free State Rugby Union, the Golden Lions Rugby Union, the Griffons Rugby Union, the Griqualand West Rugby Union, the KwaZulu-Natal Rugby Union, the Leopards Rugby Union, the Mpumalanga Rugby Union, the South Western Districts Rugby Football Union, the Valke Rugby Union and the Western Province Rugby Football Union. Each of these unions administers a senior professional rugby team that participates in the domestic Currie Cup and Rugby Challenge (previously Vodacom Cup) competitions. In addition, these unions are responsible for amateur club rugby in their region. Clubs participate in provincial leagues organised by the unions; university sides also participate in the annual Varsity Cup competition, while non-university sides participate in the annual Gold Cup. Franchises The eight franchises – teams that will participate in professional international competitions – and their constituent rugby unions are: Provincial Rugby The fourteen provincial unions each have a professional team that play in the annual Currie Cup and Rugby Challenge (previously Vodacom Cup) competitions, plus youth sides in the Under-21 and Under-19 provincial competitions and youth tournaments such as the Under-18 and Under-13 Craven Week tournaments, the Under-18 Academy Week tournament and the Under-16 Grant Khomo Week tournament. Since 2013, a team participated in the Vodacom Cup competition. Limpopo is a sub-union that forms part of the Blue Bulls Rugby Union. Varsity Rugby In 2008, a Varsity Cup competition was created, with eight universities competing. In 2011, a second tier called the Varsity Shield was added, consisting of a further five side and the collective was rebranded as "Varsity Rugby". In addition to playing in the Varsity Rugby competitions, these sides also take part in the provincial unions' championships. Provincial championships Each of the provincial unions have a number of amateur clubs playing in the respective club championships. The highest-placed non-university sides qualify to the annual Gold Cup. Blue Bulls Rugby Union The club sides that form part of the Blue Bulls Rugby Union are: Atteridgeville Brits Bronkhorstspruit Centurion Correctional Services Cullinan Dragons Eersterust Hartbeespoort Mabopane Mamelodi Nellmapius Medunsa Campus Naka Bulls Noordelikes Oostelike Eagles Pretoria Pretoria Military QBR Silver Valke Soshanguve Transwerk Parke Tswaing Tuine Westelikes Blue Bulls Limpopo Sub-Union The club sides that