Barcelona boss Quique Setien is still in the hunt for a new striker but will need authorisation before he can pursue any deal.
Barca are suffering from an injury crisis, exacerbated by a fresh injury to Ousmane Dembele, and could be given special dispensation to do a deal outside of the transfer window.
Regulations grant permission for clubs to do business away from the window if circumstances dictate, and the champions are hopeful of being able to go back into the market this month.
Editors' Picks
"It's obvious we need another attacker, there are several names on the table but it depends on many things," said Setien.