O'Neills is expecting sales of jerseys to be down this year, due to the All-Ireland finals being held earlier in the year.
The company forecasts the condensed championships could result in a 12 to 15 percent drop in replica jersey sales for this year.
The co-owner of O'Neills, Paul Towell, told The Herald that staging the football and hurling finals in July ' is not good for business'.
The company says traditionally, shops would be very busy in August with sales of semi-final county jerseys ahead of the finals in September.
