Former Britain rugby league international Martin Gleeson has been banned for three years for anti-doping rule violations.
UK Anti-Doping says the former Hull chief executive James Rule and former assistant coach Ben Cooper had also been banned after Gleeson tested positive for a banned stimulant last May.
The 31 year old Gleeson left Hull in September.
UK Anti-Doping says Gleeson had admitted lying about the circumstances leading to the positive test while Rule and Cooper were "complicit in the lies".
The organisation adds Gleeson has agreed to a three-year ban being imposed by the National Anti-Doping Panel, with half that ban suspended in recognition of his providing assistance to UK Anti-Doping.
It says Mr Cooper agreed to a two-year ban, with half also suspended. Mr Rule did not contest the charge made against him by UK Anti-Doping, and has been banned for two years by the National Anti-Doping Panel.
UK Anti-Doping chief executive Andy Parkinson says the case marked two firsts for the anti-doping community.
Mr Parkinson says it's the first time that tampering with the doping control process in this manner has resulted in a violation and the first time that members of an athlete's entourage have been convicted of anti-doping rule violations in the UK
