Watch: 'We had a strong case' - McGuinness on proposed ban
Donegal manager Jim McGuinness says the "rule book is not clear" after avoiding an eight-week suspension for fielding an ineligible player in the Dr McKenna Cup.
Finbarr Roarty, then 17, featured in Donegal's win over Armagh earlier this month. GAA rules state that senior inter-county players have to be aged 18 by the start of the calendar year.
McGuinness was speaking after watching his side beat Monaghan 4-14 to 0-11 in Sunday's McKenna Cup semi-final.
Read match report here