Brock Lesnar

 Lesnar was a wrestler in the collegiate ranks at 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) before rising to fame in 2002 after winning the WWE Championship at the age of 25. He set records for the most youthful wrestler to win the title. In 2004 Lesnar left WWE to join the Minnesota Vikings of the National Football League (NFL), but was cut from the team during pre-season. He took home the IWGP Heavyweight Championship in 2005 while with NJPW He re-signed with WWE in 2012; his 504-day reign as Universal Champion is the seventh-longest World Championship reign in WWE's history. He also took home the Royal Rumble match twice, the Money in the Bank ladder match, and the King of the Ring tournament and has been the main event at numerous pay-per view events, including WWE's most prestigious show WrestleMania five times (XIX 31, 34, 36, and 38) In addition to that, he ended the Undertaker's undefeated WrestleMania Streak in 2014.Lesnar began his MMA career in the year 2007 and joined the UFC in 2008. He quickly won the UFC Heavyweight Championship, but was forced to withdraw due to diverticulitis in 2009. When he returned in 2010, Lesnar defeated Interim UFC Heavyweight Champion Shane Carwin to unify the heavyweight championships and become the undisputed UFC Heavyweight Champion. After a string of defeats and further battles with diverticulitis, Lesnar was forced to quit MMA in 2011. After beating Mark Hunt at UFC 200, Lesnar was unable to prevail in the bout. His win was changed to a no-contest after the test showed positive for clomiphene. This banned substance is included in UFC's antidoping policies. He then resigned from MMA for a second time in the year 2017. He was a box-office success and competed in some of the most popular pay-per-view events in promotion history. He also co-headlined UFC 200, briefly being the main headliner , but that spot was given to Amanda Nunes vs Meisha Tate.