Hungarian outfit Gyori ETO expect Middlesbrough to make a decision on Tarmo Kink this week.
The Estonian international spent time in England with Boro last week, playing in a trial match and also passing a medical.
Now Gyori, who have agreed a deal with Boro, are awaiting confirmation of whether the transfer will be pushed through or not.
"It will be decided within a couple of days if Kink stays in Hungary or signs in England," Tibor Klement, the general director of Gyori, told Nemzeti Sport.
"His selling price is not public, it will only be published if the buyers give permission for this."
Gyori are due to play French side Montpellier in the Europa League qualifiers, and they want Kink's future resolved before then.
"According to the rules we can change our squad 24 hours prior the kick-off. If Tarmo Kink will be in Hungary on Thursday then he may play against Montpellier. Of course, this decision will be made by the head coach," Klement added.
Kink himself has admitted that he would love the chance to play in England, saying: "It would be a forward step for me if I could sign in England.
"The conditions are great, I passed the medical but I can't say more about it until I sign the contract.
"At the moment I prepare for the game against Montpellier."