Brock has got to be somewhere on the list. He almost made an NFL roster after not playing football in like a decade. And then he went on to become the UFC champion too. He may not be number one but he is at least in the running.
High School Champ, Division 1 NCAA Heavyweight Champ, WWE Champ, UFC Champ...
Brock Edward Lesnar[3] (
/ˈlɛznər/; born July 12, 1977)
[3] is an American
professional wrestler, and former
American footballdefensive tackle and professional
mixed martial artist.
[4] He is currently signed to
WWE. Lesnar is a four-time
WWE (World Heavyweight) Champion, a former
UFC Heavyweight Champion and an
NCAA Division I Heavyweight Wrestling Champion;
[5][6] making him the only man to have won all of these titles. He is also a one-time
IWGP Heavyweight Champion, making him a five-time
world champion in professional wrestling.
Lesnar was a box office sensation in UFC. He took part in five of the highest selling pay-per-views in UFC history, three of which he main-evented.
[14] Due to the pay-per-view bonuses and fight purses, Lesnar became the highest paid UFC fighter in 2010 and was on the
ESPN list of highest paid athletes in 30 sports
He grew up on a
dairy farm and joined the
National Guard at age 17.
[17] He attended Webster High School, where he had a wrestling record of 33–0–0 in his senior year.
[17] He then attended
Bismarck State College, where he would win the National Junior college wrestling championship during his sophomore year. Lesnar won the 2000
NCAA Division I heavyweight wrestling championship senior year.
https://en.wikipedia.org/wiki/Brock_Lesnar