Todd Cantwell will not be available for Wednesday's visit of Brentford, but could return to the squad for Saturday's game against Luton Town.
Cantwell missed out on Sunday's 2-0 win at Wycombe Wanderers with a calf problem, but Daniel Farke said in his pre-Brentford press conference on Tuesday that he's "improving day to day. I hope he's available for Luton, but it will be late decision."
Having played in two matches for the Under-23s, Marco Stiepermann has now returned to first team training. "It had been more of an illness than an injury," Farke said. "He looked quite sharp but he's been out since before Christmas so he'll need some time to be back in the mix."
There are no new injury concerns following the Wycombe game, with Michael McGovern, Orjan Nyland and Sam Byram continuing their recoveries.