PANAMA CITY. Dec 11: The World Boxing Association vacated the middleweight title held by Mike McCallum of Jamaica because the fighter had violated association rules, the organisation said Tuesday, reports AP.

The WBA called on the two top challengers. Irishman Steve Collins and American Reggie Johnson to fight for the title The two have 30 days to arrange a bout.

We felt obligated to take this measure because of McCal turn's violations of organisation rules," Elias Cordova, president of the WBA* World Championship Committee, told * 'contoMTsakTScCallum had been told he must fight Collins thia month for the title before he fought any other match. However. Cordova said McCallum has agreed to fight Amert can James Toney, the IBF middleweight champion on Dec 13. which Cordova rolled "a clear vtolatfon of the nites."

He said McCallum was told Monday of the decision and had no immediate reply.

McCallum won his title in May g 1989. defeat** Herol Graham of Great Britain. He was Junior middleweight title

April of this year when he took bay. formerly of Zaire, who now lives in Italy