Former big league slugger Mo Vaughn has confirmed he used human growth hormone to recover from a nagging knee injury late in his career.
The 1995 American League MVP told The Athletic in a recent interview that he had HGH injected in his knee to extend his career.
"I was trying to do everything I could," Vaughn told The Athletic. "I knew I had a bad, degenerative knee. I was shooting HGH in my knee. Whatever I could do to help the process."