Team Sky principal Sir Dave Brailsford has criticised the chairman of UK Anti-Doping for interfering in the ongoing investigation into alleged wrongdoing in cycling.

Speaking at a team training camp in Mallorca for the first time since he appeared before a Parliamentary select committee last month, Sir Dave said it was unbelievable that David Kenworthy should have intervened in the case.

Sir Dave, who is under scrutiny over the contents of a medical package delivered to Sir Bradley Wiggins in 2011, also said he had not considered his position and insisted he has always done things the right way.

Mr Kenworthy described Sir Dave’s evidence to Parliament, in which he said he had been told by team doctor Richard Freeman that the package contained a legal decongestant Fluimicil, as extraordinary and disappointing.

The comments appeared to breach UKAD’s long-held policy of not commenting on ongoing investigations, and Brailsford responded.

The very fact that the chair of UKAD can discuss and comment on a live onto going investigation and fair-minded people will say there is a process is extraordinary in itself, it’s pretty unbelievable that he thinks it is fit and proper, that’s the extraordinary thing for me, he said.

Sir Dave’s position has been questioned after he admitted inflaming the current crisis by initially misleading a journalist about the package.

Sir Bradley’s use of therapeutic use exemptions (TUEs), which allow otherwise banned drugs to be used where there is a medical requirement, has also been criticised.

Sir Dave insists there has been no wrongdoing and said he had not considered resigning.

What I can do is to continue behave to the highest standards, be accountable, be professional, do things absolutely the right way, he said.

I am not interested in doing it in any other way, I have been doing it for a very long time, I am going to continue to do it in the future.

Other people will be the judge of me, not me. I am comfortable in my own skin and what I stand for. I stand for clean sport.

Sir Dave refused to answer questions about the contents of the package, citing the ongoing UKAD investigation.

He said he had no reason to disbelieve Dr Freeman, but declined to say whether he had asked Wiggins what was administered to him.

Sky News understands UKAD is continuing to interview witnesses, but it is unlikely there will be a definitive paper-trail proving Fluimicil was administered to Sir Bradley.

(c) Sky News 2017: Team Sky boss Sir Dave Brailsford criticises UK Anti-Doping’s David Kenworthy