I wonder what was it...
Jr hinted that it was due to medication (not painkillers) containing a banned substance that got him suspended.
He certainly wouldn't be on anabolic steroids because of his previous heart condition, and with his past alcohol issues, he would have been shipped off to rehab had he relapsed.
Jr said that with the new improvements to the drug policy, it "is all about education for superstars not to be caught out unwittingly".