Brock Edward Lesnar is an American retired professional wrestler, former mixed martial artist, amateur wrestler, and professional American football player. He is best known for his tenures in WWE between 2000 and 2026. Lesnar is the only person to have won the primary heavyweight championships of WWE, Ultimate Fighting Championship (UFC), New Japan Pro-Wrestling (NJPW), the Inoki Genome Federation (IGF), and the National Collegiate Athletic Association (NCAA).