Question: What company is a 1931-born rival promoter to Don King in the 1980's the CEO of?
Sentence (from "Boxing in the 1980s"): In 1986, Mike Tyson emerged as a fresh new face in the heavyweight division, which had seen a decline in champion quality level (particularly in the WBA side) after Ali's retirement and, later on, after longtime WBC ruler Larry Holmes' prime.
Relevant evidence: Yes