Mike Tyson's lawsuit seeking to block sanctioning of next month's heavyweight title bout between Evander Holyfield and George Foreman was dismissed in a federal court.

Judge John S. Martin Jr. of the Southern District of New York noted in Tyson's suit against the WBA, WBC and IBF that a champion has one year within which to defend his title against the leading available contender. During that period, he may make a voluntary defense against any boxer rated in the top 10.Tyson had sued after claiming he was entitled to a rematch with Buster Douglas, who knocked him out in February 1990. Instead, Douglas fought and lost to Holyfield.