Valencia have completed the signing of Belgium international Zakaria Bakkali on a five-year contract.
Newcastle are yet to make an offer for PSV's Georginio Wijnaldum but are expected to step up their interest this week.
Liverpool have moved to sign teenage Dutch winger Bobby Adekanye after FIFA stopped him from playing for Barcelona.
Stuttgart have announced two new signings as they look to avoid a second consecutive relegation battle.
Memphis Depay has admitted Manchester United wanted him to sit out of his final two matches with PSV.
PSV Eindhoven star Memphis Depay completed a medical on Monday ahead of his agreed transfer to Manchester United.