Diego Costa is expected to find out on Wednesday whether he can join Wolves after initially failing to qualify for a work permit.
The former Chelsea striker has agreed to join the Midlands club until the end of the season as a replacement for summer signing Sasa Kalajdzic, who suffered a serious knee injury on his debut.
But Costa does not meet the criteria needed to qualify for a permit under the FA’s rules for overseas players.
This is because he has not played enough first-team football in the last year.