Charlton face Sutton United at The Valley in their third and final Bristol Street Motors Trophy group game on Tuesday night (KO 7pm GMT).
The fixture is a winner-takes-all clash with the victors securing their spot in the round of 32 and the losers exiting the competition. The teams are currently locked level on three points, although the Addicks have the superior goal difference.
If the score is level after 90 minutes, the sides will contest a penalty shootout to determine who achieves the bonus point and progresses to the knockout stages.
Tickets for Tuesday's tie against the U's are priced at £10 for adults and £5 for O65s and U21s. Click here to purchase yours now.