sentences:  Some athletes continued their sports careers in South Africa in isolation, with some stars like women's 400 metres runner Myrtle Bothma running a world record time at the South African championships.Some sports teams toured South Africa as "Rebel Tours" and played the Springbok rugby and cricket teams in South Africa during the isolation period.In 1977, Commonwealth Presidents and Prime Ministers agreed, as part of their support for the international campaign against apartheid, to discourage contact and competition between their sportsmen and sporting organisations, teams or individuals from South Africa.