Wolves have completed the signing of Rodrigo Gomes from Braga in a deal worth £12.7m.
The winger signed a contract until 2029 with a one-year option after completing his medical on Tuesday.
Boss Gary O'Neil said: "I'm delighted, especially to get one in so early. I think in transfer windows it's very easy for everything to drag on and get done very late, but from a squad point of view - laying plans for next season - it's really important.
"The type of player Rodrigo is, he had a fantastic season last season, playing in many different positions and he's only 20 years old.