Kildare resident Conor McGregor is expected to be charged with assault after allegedly punching a man in a Dublin pub.
Video footage of an incident, which is alleged to have happened in April, was published online yesterday.
Gardaí have confirmed that investigations are ongoing, and it's understood a file has been sent to the DPP.
No arrests have been made.
John Hand from the Irish Sun says the alleged victim appeared to refuse a drink from the MMA star:
Image: Conor McGregor/Twitter.