3. Nate Newton
Not content to be merely a big presence on the gridiron, Nate Newton also wanted to break into the drug racket, too. In 2001, he was busted with two women while transporting over 200 pounds of marijuana in his car. He spent over two years in prison as a result.
4. Darryl Strawberry
Despite a successful career in the MLB, Darryl Strawberry long struggled with substance abuse, particularly with cocaine. In fact, he was suspended three times for drug-related offences over the course of his career.