Wolves manager Stale Solbakken won't deny midfielder Tongo Doumbia the chance of playing in the African Nations Cup.
Doumbia rediscovered some better form for Wolves at Middlesbrough on Saturday after recently returning to France to recharge his batteries, but Solbakken is expecting to be without him for an extended spell when the African Nations Cup gets underway next month.
"It's still up in the air at the moment," Solbakken told the club's official website. "There are many things involved and it's a big decision for everyone. We don't really want him to go, but we'll see what happens.
"If he wants to go and he's picked, it's no problem - we must be without him. It's as simple as that. There are international rules for this.
"In a way, I can influence it a little bit, but I'm not going to twist his arm. This is his country."
Solbakken revealed Doumbia's short-term future could influence his decision on whether to pursue his interest in former loan midfielder Emmanuel Frimpong.
Arsenal midfielder Frimpong had an injury-curtailed spell with Wolves last winter and although he is currently on loan at Charlton is due to return to the Emirates in January.
Solbakken added: "I think we've been right so far on this one. We've monitored his situation with Charlton and seen the games.
"He's better now than when he first went there. When he first went, he struggled a bit with his fitness. You could see that with the amount of minutes he played. Now he's playing a little bit more but not 90 minutes."
Striker Ellington, on loan from Ipswich, has been sidelined for two matches due to a calf strain, while midfielder Walker has also missed the last two games with ankle ligament damage.
"Nathan has done ever so well this week" Iron boss Brian Laws told the club's official website. "He's progressed well and we're hoping he'll be available for Carlisle this weekend.
"I'll be very disappointed if he's not fit and ready and, if he is, we'll have a bit more fire-power up front.
"Josh has come on really well, the physio is delighted with the progress that he's made and hopefully if he continues to work as hard as he is, he'll be back in the frame soon."
Meanwhile, David Mirfin is also hoping to give Laws a boost by returning from a knee ligament injury which has kept him out since early November.
Laws added: "Mirfin is very close in my opinion. I think he's still a few weeks away from being fully fit and back training with us and it's about getting it into his mindset that everything is fine and that we intend to get him back in the starting line-up sooner rather than later."
Scunthorpe will mark 100 years of professional football at the club when they take on the Cumbrians at Glanford Park on Saturday.