Only single seats are now available for the Barclays Premier League meeting with Newcastle United on Saturday.
Nearly 24,000 tickets have been sold, with another capacity attendance expected inside Madejski Stadium.
The Magpies have already sold out their allocation of more than 2,200.
The remaining single seat tickets are available now on general sale to all Member Card holders from the Ticket Office on 0870 999 1871 (10am-6pm Monday-Friday).
You can also purchase with our online ticketing service.
Ticket selling information for the next four home games, against Middlesbrough, Liverpool, Sunderland and Portsmouth, has now been announced, including news of a £1 ticket offer for Young Royals - visit our Home Games page for all the info.
