Wolves have signed Portuguese right-back Nelson Semedo from Barcelona in a £37m deal.
Manager Nuno Espirito Santo had been seeking a replacement for Matt Doherty, who moved to Premier League rivals Tottenham last month.
"It isn't often that we have the opportunity to sign a world-class player from a world-class club," said Wolves executive chairman Jeff Shi.
Semedo, 26, has played 124 times for Barca and won 13 Portugal caps.
The defender, who has signed a contract until 2023, is the third permanent signing by Wolves during this transfer window, following the arrival of Fabio Silva from Porto and Ki-Jana Hoever from Liverpool.