1. NFL failure
Brock Lesnar left the WWE in 2004 in order to pursue a career in the NFL, but the Minnesota Vikings refused to sign Lesnar on a permanent basis despite him working out with the team. A groin injury also dashed his hopes of making it big in the NFL.
Lesnar did get an invitation to play for the Vikings in NFL Europa but he declined as he wanted to stay in the United States with his family.
He returned to wrestling soon after getting cut from the NFL.
Edited by Staff Editor