An additional 1200 tickets will go on sale for Shamrock Rovers's glamour friendly with Real Madrid on 20 July at Tallaght Stadium, bringing the total capacity to 10,200.
A week ago the initial 9,000 seats were sold out within hours of being put on public release.
South Dublin County Council has agreed to build a small stand on the East side of the stadium where the new permanent stand is under construction.
The tickets, priced at €60 (excluding charges), go on sale through http://platinumonegroup.ticketsolve.com from 9am on Tuesday.
