The Valley will play host to Gillingham's Checkatrade Trophy fixture against Tottenham Hotspurs U21s on Tuesday, October, 9th (7.45pm).
Due to work being carried out on the pitch at the Gills' Priestfield Stadium, and no other date available, the match has to be played at an alternative, with Charlton agreeing to step in to play host for the cup tie.
The Addicks will be heading to the Lamex Stadium for their own Checkatrade Trophy tie against Stevenage on the same evening and tickets are available by clicking here.