Birmingham City manager Gary Rowett has been forced to deny reports that the Blues used Dr Mark Bonar.
The Sunday Times reported that Bonar had provided performance enhancing drugs to 150 professional sportsmen and women.
In the report, four football clubs were named, Birmingham City, Arsenal, Chelsea and Leicester City were all mentioned as having employed the services of Bonar.
Birmingham City previously told the BBC they strenuously denied the allegations: “The club have not used the services of Mark Bonar and has no knowledge or record of any of our players, past or present, doing so.”
Birmingham manager Rowett backed up this statement and is quoted in the Birmingham Mail as saying: “We have put a statement out, we follow all the strict anti-doping guidelines, it’s certainly not something we would ever condone in any player. We have got an in-house doctor that all the players would see if there is ever any issue. I think the statement said it all and the clubs that were alleged to be involved have all said the same thing.
“At the minute – as far as we are concerned it’s baseless and got no substance at all. We got drug-tested the last game, we have been drug-tested probably four or five times this season.
“The testers can turn up at any given moment at training. As a professional football clubs we would always follow those strict guidelines because we have to – it’s as simple as that.”
Rowett’s Birmingham City side currently lie ninth in the Championship table after 38 games played, and are currently eight points off the play-off places.
They face Brighton & Hove Albion at St Andrews tonight and the Blues have several injury doubts for the match.
Jon Toral was substituted against Charlton with impaired vision, while Jonathan Spector, Kyle Lafferty and Nicolai Brock-Madsen will all need to be assessed to see if they have recovered before being made available for selection.