His image was shared on social media after the faithful jersey was seen in the crowd.
The mystery of the Offaly GAA jersey appearing at the Ahmad bin Ali Stadium in Qatar has been solved.
15 year old Finn Kearney was shown on screen during the Belgium v Canada game on Wednesday and his image was then widely shared on social media.
The Tubber teenager and his family moved to Qatar in 2019 and they're hoping to get to as many World Cup games as possible.
His dad Anthony has been speaking with Will Faulkner on the Midlands Today Show and says he told Finn the faithful jersey is a must in these situations:

Laois Councillor Criticises Government Response To Flooding
Laois Protesters Host Anti-Hunt Ball
Midlands 103 Reaches 112k Weekly Listeners In Latest JNLR Report
Longford-Westmeath TD Calls For Changes In ADHD policies
HSE Midlands And Dublin Record Highest Number Of STI's
Laois Heritage Society Launches Spring Talks With Evening of Folklore
Midlands Counties Among Most Superstitious Regions In Ireland
Landlords Set To Reset Rents To Market Rates
Man Charged Over Westmeath Garda Station Attack Expected To Bring Full Bail Application
Offaly Retailer Fined For Breaching Consumer Law
EU Must Recognise 'Toxic' Laughing Gas As Psychoactive Substance Of Concern - Nina Carberry
Unmarked Grave Campaign Group Call For Meeting with Taosieach
Court Hears Man Who Killed Father In Laois Hotel Believed He Was Attacking Imposter
Former Detective Demands Higher Gardai Numbers For Community Policing
Aontú Publish New Flood Forecasting Bill
Retired Westmeath Chief Fire Officer Calls For Re-Examining of Beep Test
Laois Actor Settling Roots In West Cork
Local Authorities Will Be Held Accountable On Windfarm Judgement - Eamon Ryan
ODVSS Back NWC Calls To Remove Domestic Abuse Perpetrators From Homes
Fate Of Former Westmeath IPAS Centre In Hands Of OPW - Aengus O'Rourke