Ikemefula Charles "Ike" Ibeabuchi defeated a boxer who is a two-time what?
Ike Ibeabuchi:  He defeated highly ranked contender David Tua in 1997 and future world champion Chris Byrd in 1999. Chris Byrd: Christopher Cornelius "Chris" Byrd (born August 15, 1970) is an American former professional boxer who competed from 1993 to 2009.
i don't know