Olympic Games of African countries threatened the IOC with a boycott to force them to ban South Africa and Rhodesia, because of their segregationist regimes. New Zealand was also one of the African boycott targets, because its national rugby union team had toured apartheid-ruled South Africa. The IOC conceded in the first two cases, but refused to ban New Zealand on the grounds that rugby was not an Olympic sport. Fulfilling their threat, twenty African countries were joined by Guyana and Iraq in a withdrawal from the Montreal Games, after a few of their athletes had already competed. Taiwan was excluded from
South Africa A national rugby union team Mvovo and Seabelo Senatla were subsequently called-up in place of Jamba Ulengo (injured) and Lionel Mapoe (called up to the Springbok squad) respectively. South Africa A national rugby union team South Africa 'A', also formerly known as the Junior Springboks or the Emerging Springboks, are the second national rugby union team representing South Africa, below the senior national team, the Springboks. Until 2018, it was also under the South Africa Under-20 team in the country's rugby hierarchy, but World Rugby changed its regulations to prohibit unions from designating an under-20 team as its second 15-a-side team. They competed in the