Career
He signed with the San Diego Chargers in 2004, and retired in 2005 after a back injury. He attended Marshall University. Chapman was a color commentator for Entertainment and Sports Programming Network and the Columbia Broadcasting System Sports Network from 2008 to 2012.
Chapman is currently a college football analyst for Campus Insiders and joined the Big Ten Network for the 2013 season as a guest analyst on Big Ten Football & Beyond, making his debut on September 3, 2013.