Nuno Espirito Santo is close to signing Atletico Madrid defender Jonny Castro Otto in a £18million joint club record deal.
Wolves are in advanced negotiations with Atletico to sign the Spain international on a permanent basis after his impressive first half to the season on loan.
Jonny, 24, has been a key player under Nuno since Wolves’s promotion to the Premier League and there was a clause in the loan deal which allowed both parties to discuss a permanent transfer in January.
Wolves expect to complete the formalities in the next few days in a deal which will equal their club record spend on Adama Traore from Middlesbrough in August.
Since joining Wolves, Jonny has been promoted to the senior Spain national team and made his debut in the Uefa Nations League clash with England in October.