Johnson beat Tarver on a split decision in December 2004 but Tarver gained revenge with a split decision of his own last June.

BBC: SPORT | Boxing | Woods gets third Johnson showdown

Johnson beat Tarver on a split decision in an IBO title bout in December 2004, but Tarver gained revenge with a split decision of his own last June.

BBC: SPORT | Boxing | Woods pins hopes on Johnson bout

Most observers assume the Supreme Court decision will split five to four, and Justice Anthony Kennedy will cast the swing vote.

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