Mo Vaughn, former MLB slugger, admitted to using human growth hormone to recover from a knee injury late in his career. He was among players named in the Mitchell Report for purchasing HGH in 2001.
Key Points
Admitted to shooting HGH in his knee for recovery
Named in the Mitchell Report for purchasing HGH in 2001
MLB banned HGH in 2005, two years after Vaughn's final game
Pros
Extended his big league career
Helped recover from a knee injury
Cons
Admitted use of performance-enhancing drug
Included in the Mitchell Report on steroid and drug use in baseball