Punishments have been handed out following breaches of Football League financial fair play regulations.
An inability to dip into the New Year market could hit all three sides hard, as they endeavour to mount promotion pushes and steer clear of trouble.
Forest boss Stuart Pearce is trying to stay positive, though, and believes a siege mentality could be forged at the City Ground.
He was able to bolster his ranks over the summer, so is not overly concerned about being blocked from doing so again, and believes the carrot of Premier League football should help to inspire all of those connected with the club and pull everyone together in the pursuit of an ultimate goal.
Pearce told Sky Sports: “It’s something we’ve been aware of for a number of weeks, so it’s not something that’s just sprung on me this week. It’s been announced in the media this week, but it’s something that I have been made aware of by our chief exec for a number of weeks. We were prepared for that.
“The other side of that is that I think we have pulled together a pretty competitive squad at this moment in time. To have the likes of (Andy) Reid and (Jack) Hobbs back very soon to add to our squad will be like two new signings this season.
“From our point of view, I’m quite buoyed up by it. If the embargo had been sprung on me in the summer, before I had the opportunity to bring seven, eight of my own players in, it would concern me a little bit more. But it is what it is and I think it will galvanise our football club.
“When I’m talking about that, I’m talking about the supporters and all the way through the club. The only way to come out of the embargo is promotion into the Premier League, so it gives us a fantastic target going forward.”
Forest sit ninth in the second-tier standings at present, five points adrift of the play-off places.
Pearce’s men have gone three games without a win and face another testing encounter on Saturday when they welcome Leeds to the banks of the River Trent.
Both of those sides now find themselves in the same boat, so it will be interesting to see how their respective squads fare in direct competition – with there little Pearce and Neil Redfearn will be able to do if the going gets tough.