Career
He has held regional titles from the USBA (Now the IBF), NABA, UBA, and NABF. Mack has fought several former world champions, including Alejandro Berrio, Glen Johnson and Carl Froch.
He has held regional titles from the USBA (Now the IBF), NABA, UBA, and NABF. Mack has fought several former world champions, including Alejandro Berrio, Glen Johnson and Carl Froch.