By Chris LaBate

Family Arena, St. Charles, MO. - IBF light heavyweight champion Tavoris Cloud (23-0, 19KOs) knocked out a gutsy Yusaf Mack (29-4-2, 17KOs) in the eight round.

After a first round filled with boxing from Mack, the two fighters were trading punches in the second and Cloud was winning that battle. Mack continued to box well in the third, and then Cloud started coming on with his power punches in the fourth. After three rounds of Mack moving around and boxing, Cloud caught Mack with a crushing left hand in the eight. A barrage of punches sent Mack down and he barely made it to his feet. Mack was slumped against the ropes, unable to walk forward to the referee and the fight was stopped.