Mayo GAA benefactor Tim O'Leary has apologised after suggesting manager James Horan should be sacked in the wake of the county's nine-point loss to Monaghan at the weekend. 

O'Leary, who is the financier of the Mayo Supporters Foundations, reacted to the 2-16 to 0-13 defeat in Clones by tweeting his disapproval at the result. 

Two hours after the loss, the millionaire businessman tweeted "#Horanout We are not very good #TruthHurts always."

He deleted this tweet on Monday morning and issued an apology via his Twitter account. 

"Sorry for my outburst yesterday - had a few too many pints - lesson learned - I am going to keep my mouth shut going forward," he wrote.

O'Leary was in the news late last year due to a dispute with the Mayo county board over how they spent a €150,000 donation he made. 

His group, the Mayo Supporters Foundation, subsequently withheld a donation of €250,000 it had raised last year and O'Leary called for a review over the county's governance of funds. 

The issue was resolved in January with the Mayo county board outlining financial reforms, the Foundation agreeing to release the donation, and both sides apologising to one another for intemperate remarks made during the dispute. 

Mayo are currently sitting second from bottom in Division 1, having accumulated three points in the first four games.