Hasim Sharif Rahman is an American professional boxer. He is a two-time world heavyweight champion, having held the unified WBC, IBF, IBO and lineal titles in 2001; and the WBC title again from 2005 to 2006. He was ranked as a top 10 heavyweight by BoxRec from 2000 to 2007, and reached his highest ranking of world No.6 in 2000. World heavyweight champion (WBC) from November 9, 2005 to August 12, 2006. Wiki link