Todd Cantwell is unavailable for Sunday's game away to Wycombe Wanderers, Daniel Farke confirmed in his pre-match press conference on Friday.
"He was moaning about calf problems after the last game," Farke explained. "He will be out for the weekend, so bad news. I hope it's not too bad and we don't miss him for too long."
Onel Hernandez suffered a dead leg in training on Wednesday, meaning there's a question mark around his availability.
Josh Martin "isn't available with a little hit on his toe which is swollen. Not major but he's not available for the weekend," Farke added.
On the plus side, Ben Gibson could be available for this weekend. "Good news with Ben, he's much improved with his back. We have sessions today and tomorrow so it depends how he comes through those. I'm carefully optimistic he'll be available.
"Marco Stiepermann will be playing as long as possible today [for the Under-23s], then has a recovery day tomorrow. Hopefully, from Monday on, he's back with us.
"Orjan Nyland is back in team training."
Michael McGovern and Sam Byram remain sidelined.