UFC heavyweight champion Francis Ngannou has admitted he felt nervous punching Jackass star Ehren McGhehey in the groin for a stunt in their new movie.
The heavy-hitting MMA star was brought onto the set of the new film, which is released today in cinemas, as part of a prank on McGhehey, who goes by the nickname 'danger'.
He was told that as a "cup test", he would be punched in the groin by a UFC star, expected to come from the lightweight division where fighters weigh around 155lb.
