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Two drunken South African fans hurled racist abuse at their country's rugby sevens coach after the team were eliminated from last weekend's Hong Kong tournament.
The men also swore at and threatened coach Paul Treu as he gave a pitch-side interview to South African TV.
Using derogatory Afrikaans words for black people, they accused Treu of not picking enough white players, the South China Morning Post newspaper said.
South Africa fielded one white player through the tournament.
