Complex sentence: As he explains in his autobiographical book "Kaffir Boy", Mathabane survived the oppressive environment by excelling at tennis and managed to earn a tennis scholarship to a school in the United States, escaping the brutal conditions of his homeland.
Split into simpler sentences: As he explains in his autobiographical book Kaffir Boy, Mathabane survived the oppressive environment by excelling at tennis. He managed to earn a tennis scholarship to a school in the United States, thus escaping the brutal condititions of his homeland.