Charlton may want Darren Randolph back from the Bulls after no.1 Nicky Weaver suffered a knee injury at the weekend.
The former Man City stopper broke down in the pre-match warm up at Brighton, with boss Alan Pardew saying: "Nicky hurt his knee in the warm-up. Unfortunately he got it caught in the ground because it was a sticky pitch and we now have to wait and see what the scan says."
Pardew went on to tell the local press he would wait for the results before deciding on whether to get Randolph back - although it is unclear whether the decision will rest with him or Bulls boss Graham Turner.
In a recent interview, Turner outlined his intentions to take a goalkeeper on loan but would not want to rely on a keeper that could be recalled at short notice leaving the Bulls' short themselves.
Weaver's injury leaves Charlton with only two rookie keepers available; 22 year old Rob Elliot, with only one sub appearance to his name, and 17 year old Callum Christie.