It's understood Matheus Cunha is to join Manchester United from Wolves.
The forward has a 62-and-a-half-million pound release clause.
Cunha wants to play for United with the deal expected to be agreed next week.
Aaron Connolly is searching for a new club after Millwall confirmed that he'll be leaving at the end of his contract this summer.
The Republic of Ireland international joined the Championship side on a short-term contract in January after being released by Sunderland.
Connolly scored one goal in 14 appearances during his time at The Den.