#1 Brock Lesnar

Brock Lesnar has tried his hand at a couple of different sports including MMA and professional football in the NFL. After earning a NCAA Division I Championship in 2000, Lesnar would soon take his talents to the WWE for his first run in the company.
Lesnar rose to stardom on the WWE main roster after a stint in Ohio Valley Wrestling (OVW) from 2000-2002. Once on the main roster, Brock Lesnar was quickly elevated due to his powerful ability in the ring. Even after a successful title run and stardom, Lesnar left the WWE after just two years to pursue a career in football.
After being cut in training camp following his tryout with the Minnesota Vikings, Brock Lesnar returned to wrestling for two years, working in Japanese promotions. He would begin his MMA career in 2007.
Just one year after his MMA career began, Brock Lesnar made his UFC debut on February 2, 2008 against Frank Mir. Lesnar eventually earned a UFC Heavyweight Championship Fight against MMA legend Randy Couture, in which Lesnar defeated Couture to become the champion.
Lesnar fought in the UFC until 2011, and eventually returned to the promotion from 2016 to 2018 while he was still dominating the WWE upon his return in 2012.