Brock Edward Lesnar ( LEZ-nər; born July 12, 1977) is an American professional wrestler and former mixed martial artist, amateur wrestler and professional American football player. As a professional wrestler he has been signed to WWE since 2021, having two previous tenures from 2000–2004 and 2012–2020. Lesnar is the only person to have won the primary heavyweight championships of World Wrestling Entertainment (WWE), Ultimate Fighting Championship (UFC), New Japan Pro-Wrestling (NJPW), the Inoki Genome Federation (IGF), and the National Collegiate Athletic Association (NCAA).
Lesnar competed in collegiate wrestling for the University of Minnesota, winning the NCAA Division I national championship in 2000. He soon signed with the World Wrestling Federation (WWF, renamed WWE in 2002), rising to industry prominence in mid-2002 by winning the WWE Championship at age 25, setting the record for the youngest performer to win the championship. In 2004, Lesnar departed WWE to join the Minnesota Vikings of the National Football League (NFL), but was cut from the team during pre-season. He returned to wrestling and signed with NJPW in 2005 where he won the IWGP Heavyweight Championship.