The Royals missed out on the play-offs despite a spectacular equaliser by Gareth McCleary at home to Burnley.
Brighton and Hove Albion have secured a place in the Championship play-offs after winning 2-1 against Nottingham Forest.
Reading are back in the play-off places following a 2-0 victory over Middlesborough in the Championship.
Having successfully secured a place in the play-offs, tickets for Brighton's home leg versus Derby County - which takes place on May 8th - will be initially available tomorrow morning from 9 o'clock to all season-ticket holders.
But Brighton and Hove Albion is warning fans to act fast as seats must be bought before 2pm on Monday 5th May. The club doesn't think the tickets will be available for general sale.
For those wishing to attend the away leg, at Derby County on Sunday 11th May, tickets will also be available tomorrow from 9am.