Penultimate home game sees Bluebirds visit.
The U's will be looking to complete a double over the Bluebirds, having won 2-0 in South Wales earlier in the season.
The game on Monday night kicks off at 7pm andusual U21s prices apply.
John McGreal's men have only three games left this season, with Millwall and Crystal Palace still to come.
U's: Boness, Olufemi, Burgess, Harding, Lawrence, Harrison, Curtis, Miles, Bonne, Dunne, Brown, James, Sheriff, Stevens, Bailey, Diaz Wright