Emergency services were called to Glenavon FC in Lurgan just after midnight.
A teenager has been arrested following a stabbing at a soccer club in the North.
Emergency services were called to Glenavon FC in Lurgan just after midnight.
An 18 year old man was subsequently taken to hospital for treatment to serious head injuries.
The PSNI says an 18 year old man, who was arrested, remains in custody.
Police also say they're aware a lot of people were in the club around the time of the incident, and so are appealing to anyone with information to come forward.

Finance Minister Paschal Donohue To Resign From Cabinet To Take Up Position At The World Bank
Hundreds Of Kildare Households Got Average €228 In Storm Aid After Éowyn
Government Poised To Approve Statutory Public Inquiry Into Children’s Spinal Care
Saint Vincent De Paul Says Need For Help “Soaring” As Families Struggle To Afford Christmas
Kildare District Heating Studies Underway As Ireland Plans Major National Rollout
Government To Replace Apartment Planning Guidelines After Challenge Involving Clane-Maynooth Cllr
At-Home Smear Tests Poised For Rollout In Major Cervical Cancer Prevention Shift
Motorist Caught At 200km/h On M7 Near Naas Avoids Mandatory Ban By Making €10k Donation To Charity