Nottingham Forest are trying to revive a deal for Brazilian winger Angelo Gabriel but it is unclear whether they can do so before the window closes.
The 18-year-old, who plays for Santos, has been a target for Forest throughout the window, though the move appeared to have broken down over the weekend.
Sportsmail understands Forest have not given up hope of this one, but it would be tough to get it over the line with the clock ticking.
The club are preparing to announce the signings of Jonjo Shelvey and Felipe from Newcastle and Atletico Madrid respectively.