Nevada State Athletic Commissioners are scheduled to consider Tyson's bid for a license to fight world heavyweight champion Lennox Lewis today with opinion appeared split over his chances.
It puts a question mark over boxing's most lucrative fight, and will once again bring the credibility of the sport into question.
Tyson must face the commission exactly one week after triggering a wild brawl at a press conference in New York to promote the April 6 bout against Lewis, the reigning World Boxing Council and International Boxing Federation champion.
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"Iron" Mike Tyson, the most notorious heavyweight in recent boxing history, may well learn that even in Las Vegas, where almost everything has a price, his credit has run out.
