 He subsequently lost to Andy Ruiz Jr., who went on to win the world heavyweight championship and was recognized as the best heavyweight in the world after defeated Anthony Joshua.On December 2, 2017, at Carnivore Grounds, in Nairobi, Kenya, Davis made a successful comeback at age 44, opening an eight bout card by scoring a third round stoppage of Mbaruku Kheri of Tanzania, in the opening preliminary bout to the World Boxing Council female super bantamweight world championship main event.Davis played professional football as an outside linebacker and defensive end for the Hamilton Tiger-Cats of the Canadian Football League in 1996 and 1997.