#3 Kurt Angle - 2006

Kurt Angle's problems with addiction to pain medication started with an injury before the 1996 Olympics. It only got worse after repeated injuries as a pro wrestler and things got so bad that WWE suspended him in 2006 for issues with not just prescription painkillers but also PED's.
Angle has said in interviews later on that the problem got worse with him not given time off despite wrestling while hurt. He also said this caused him to eventually ask for his release in 2006.
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In an interview with ESPN, Kurt Angle gave an insight into how bad his trouble with addiction got at one point:
“The thing is, everybody drank down there [in TNA]. So I started drinking with my meds. And then I started manipulating my meds. I would save all of them until the evening and drink it with alcohol. And it got me in a lot of trouble — four DUIs in five years.”