Michael Spinks world Heavyweight champion in Las Vegas. 1979 saw Spinks get less than three minutes of boxing action inside a ring, with his only fight ending in a first round knockout of Marc Hans, but in 1980, Spinks took his ascent towards the top to another level, when he beat future IBF super-middleweight champion Murray Sutherland, David Conteh, and fringe contenders Ramon Ronquillo and Alvaro Yaqui Lopez (who challenged for a world title four times). Of his five wins that year, three came by knockout, Sutherland and Johnny Wilburn being the only ones who lasted the distance. By 1981, Spinks was
Mike Tyson vs. Michael Spinks and then successfully defended his title against Steffen Tangstad. Instead of defending his IBF title against top contender Tony Tucker, Spinks elected to take a more lucrative fight with former contender Gerry Cooney, who had fought three times in five years, in June 1987. The IBF responded by stripping Spinks of the title, but he was still in possession of the lineal and "Ring" titles and was considered by many to still be the rightful champion. Mike Tyson turned professional in 1985 and won his first 19 fights by knockout, quickly garnering media attention and establishing an "aura of invincibility".