Yeovil are sweating over the condition of goalkeeper Rene Gilmartin's finger ahead of their clash with the Addicks.
On-loan Gilmartin dislocated his digit in the 0-0 draw with Rochdale at Spotland last weekend and the club are waiting on the results of a scan to see whether or not the Watford man will be able to play against the promotion-chasing Addicks.
With youth-team stopper Matt Cafer and keeping coach Gareth Stewart both ruled out through injury, the Glovers may have to dip into the emergency loan market to provide cover in between the sticks should Gilmartin be declared unfit.
Yeovil manager Terry Skiverton will also be without full-back Kerrea Gilbert, who serves the first match of a three-game ban following his dismissal against Dale on Saturday.
However, centre-back Bondz N'Gala returns to the Glovers' squad after sitting out the stalemate in the north west because of his own one-match suspension.
Charlton boss Chris Powell will once again be without captain Johnnie Jackson for the Boxing Day clash trip to the Glovers.
Jackson has been on the sidelines since suffering a hamstring injury in the 1-0 win over Brentford on November 19, but is now back in training.
The Addicks have been monitoring Jackson closely and he is set to step up the intensity of his training, although the match will come too soon for him.
Jackson's fellow midfielder, Dale Stephens, remains sidelined after suffering an ankle injury.
If Jackson is not able to start, on-loan duo Hogan Ephraim and Darel Russell will most likely fill their midfield berths.
Charlton are five points clear at the top of npower League One and looking to extend their unbeaten league run to eight matches.