Former world title challenger Golden Johnson has signed a promotional contract with Bob Arum's Top Rank.  This contract is a 7 fight, 3 year deal, and it certainly begins to shape things up for a possible showdown with Antonio Margarito.  Johnson still has not signed any contract to fight Margarito, however it's likely that it's just a matter of time.  Stay tuned to Boxingtalk for timely and accurate updates.