A doctor accused of writing steroid prescriptions for three Carolina Panthers players has denied any wrongdoing.
Dr James Shortt, an alternative practitioner under investigation by government and state officials, defended himself in Wednesday's edition of The Charlotte Observer.
He claimed he prescribes steroids only in low doses, and monitors
patients to ensure their steroid levels are within "their upper limit of normal".
He said: "People come to me often because they're worn down, they're exhausted, or something has happened to them and they haven't recovered fully."
Elsewhere, a report in the US television news programme '60 Minutes Wednesday' claimed that three Panthers players were prescribed a banned testosterone cream during Carolina's run to the 2003 Super Bowl.
One of them, alleged the programme, also obtained syringes of the injectable steroid stanozolol, which is also banned by the NFL.
The Panthers have said they are co-operating with law enforcement and the NFL in their investigation of Shortt's connection with the team.
Shortt is under criminal investigation for his role in the deaths of two patients to whom he gave controversial hydrogen peroxide infusions.
He declined to name any of his patients in the interview with the Charlotte Observer.