Charlton host Sutton United in their final Bristol Street Motors Trophy group game on Tuesday night (KO 7pm GMT).
With both sides level on three points, it is effectively a knockout tie with the winners progressing to the round of 32 and the losers exiting the competition.
Should the teams be level after 90 minutes, there will be a penalty shootout to determine which side claims the bonus point and secures their spot in the next stage of the Bristol Street Motors Trophy.
Fans all over the world - including those in the UK and Ireland - can every kick of Tuesday's action live on CharltonTV. Click here to purchase your match pass.
James Abankwah (Ireland U21s), Karoy Anderson (Jamaica), Michael Hector (Jamaica), Ashley Maynard-Brewer (Australia) and Terell Thomas (St Lucia) are all on international duty, while Harry Isted (knee), Terry Taylor (ankle), Panutche Camará (hamstring) and Chuks Aneke (hamstring) remain unavailable.
Lee Angol is suspended for the visitors having been cautioned in both of the U's group games. Meanwhile, Luton Town loanee Dion Pereira is away with Antigua and Barbuda.
Only goal difference separates the U's and the Addicks in Southern Group B.
Matt Gray's side kicked off their Bristol Street Motors Trophy campaign with a 2-2 draw against Aston Villa's U21s, before losing 5-4 on penalties. Sutton then shared a goalless draw with Crawley Town and secured an extra point with a 5-4 shootout success.
Sutton, who currently sit bottom of Sky Bet League Two, travel to SE7 on the back of a 1-1 draw at home to Tranmere Rovers last weekend.
Tuesday's fixture will be the first competitive clash between Charlton and Sutton.
The sides last met in the summer of 2022, playing out a goalless draw in a pre-season friendly at the VBS Community Stadium.
Carl Brook will be the man in the middle on Tuesday night. The official has overseen 15 games so far this season, showing 70 yellow cards and one red card.
Brook will be assisted by Marc Wilson and Jonathon Block, while Ryan Atkin is the Fourth Official.
Bartram's and the Meantime Fans’ Bar will both be closed on Tuesday night, as will the club's Family Activity Zone.
Addicks all over the world - including those in the UK and Ireland - can watch all of the action live on CharltonTV. Click here to get your match pass.
Visiting The Valley for the first time on Tuesday? Click here to read our Visitors' Guide.