Millwall's Carabao Cup Second Round tie at home to Cambridge United will take place at The Den on Tuesday 24th August (kick-off 7.45pm).
The Lions and The U's will meet for the first time competitively since 2003 for a place in Round Three of the competition, with reduced prices on offer for supporters wishing to attend.
Season ticket holders and members prices will be £10 adults, £8 over 62s and £3 under 18s.
General sale ticket prices will be £12 adults, £10 over 62s, £5 under 18s.
A further announcement will be made once tickets go on sale.