Bam Margera Challenges Johnny Knoxville to a Fight Amidst Sobriety Struggles.

Bam Margera, former Jackass star, has challenged Johnny Knoxville to a fight without boxing gloves in a recent social media post. Margera alleged that Knoxville and Jeff Tremaine required him to sign a "death waiver" and take 18 different medications, which affected his sexual performance and led to weight gain. Margera has had ongoing sobriety struggles and legal battles with his former collaborators. Knoxville and Tremaine have not responded to the challenge.