Ticket sales for the pre-season friendly have almost reached the 4,000 barrier after just four days of sale.
Opposition fans have been keen to purchase tickets for the match that takes place on July 20, accounting for 3,400 of the 3,750 sold so far, a figure that includes the allocation sent to Celtic that goes on sale to their Season Ticket Holders next week.
Brook Road seats and terrace are now completely sold out, with Celtic fans at present only able to purchase seats for the Bill Axbey (New Road) Stand, which is all-seated.
The Club expects this stand to be sold out by next week.
The Ticket Office is open from 10am-4pm tomorrow [Friday], accepting counter sales and via the telephone on 0845 3456 442, selecting option four.
Brentford fans can also purchase online 24 hours a day via the Club’s ticket website www.brentfordfc.talent-sport.co.uk
Full information on allocation and admission prices for this game for both teams can be viewed on the Celtic ticket information page.