Complex sentence: Many South Africans, both black and white, doubt that rugby will unite a nation torn apart by nearly 50 years of racial tensions, as for many blacks, especially the radicals, the Springboks symbolise white supremacy.
Split into simpler sentences: Many South Africans, both black and white, doubt that rugby will unite a nation torn apart by some 50 years of racial tensions. For many blacks, especially the radicals, the Springboks symbolise white supremacy.