Defender Bonz N'Gala and striker Dani Lopez have had their loan spells at Underhill cut short after being recalled by parent club Stevenage.
The departure of Spanish frontman Lopez is a particular blow as he scored a hat-trick in last Saturday's 4-1 win over Morecambe.
Top scorer Jake Hyde returned from a hamstring injury as a late substitute in Tuesday night's 1-0 defeat at Oxford so he could start, while Davids has recalled striker Harry Crawford from a loan spell at non-league Dartford.
Davids has also drafted in Tom Flanagan on loan from MK Dons to replace N'Gala.
Midfielder John Oster (hamstring) and forwards Ricky Holmes (foot) and Steve Kabba (knee) remain on the sidelines.
