Kerry footballer Brendan O'Sullivan served a suspension for a failed drugs test.
The Kerry County committee confirmed a sample taken after the 2016 Allianz Football League final defeat to Dublin tested positive for a banned substance.
They say that Sport Ireland accepted that the rule violation was not intentional and O'Sullivan co-operated with the investigation and served a ban.
Sport Ireland are due to publish their written ruling in the coming days.
O'Sullivan came in for Donnchadh Walsh after 55 minutes of the Kingdom’s 2-18 to 0-13 defeat at the hands of Dublin.
O’Sullivan did not play for Kerry again in 2016, but featured off the bench in the 2-17 to 1-17 win over Donegal in the Allianz League.
The Kingdom went on to win the competition, defeating reigning champions Dublin in the decider at Croke Park.
Full statement from Kerry County Committee
On the 24th of April 2016 Brendan O’ Sullivan (Valentia Young Islanders & Kerry) underwent a routine Sport Ireland doping control test following the Allianz League final.
The results of the test indicated a rule violation.
Brendan O’Sullivan fully cooperated in assisting Sport Ireland.
The subsequent findings of Sport Ireland accepted that the rule violation was not intentional and the resultant suspension has been served.
Sport Ireland is expected to deliver a written decision shortly.
All involved with Kerry GAA are delighted to see Brendan back playing football.
Kerry County Committee and Team Management will be making no further comments until the Sport Ireland report has been issued.