Last night former undisputed heavyweight champion Mike Tyson informed Boxingtalk that he will not be working the corner of Sultan Ibragimov, when the undefeated Russian challenges WBO heavyweight champion Shannon Briggas at Atlantic City's Boardwalk Hall on Saturday night. "I would have loved to work his corner, but they're not going to let me travel to Atlantic City for it." Tyson also informed us that he has been granted permission to travel to Washington D.C. today to witness his daughter's high school graduation. Much more with Tyson to follow in the coming days so stay tuned.