Atletico Madrid president Enrique Cerezo is delighted with their swoop for Arthur Vermeeren.
The midfielder, who was on the bench for the win against Valencia, arrived on Friday from Antwerp.
At Vermeeren's presentation today, Cerezo stated: "He is a young footballer with a huge future who excites the fans and who was wanted by multiple clubs.
He is one of the most talented midfielders with global projection, who knows what it means to play in highly demanding matches.
His growth has opened the Belgian national team for him. You arrive at a club with maximum demands, we trust in your talent, quality and way of being. You have a promising future. With the help of the coaching staff and teammates, you will make us live great moments.
I hope you spend many years and have the desire to succeed that we all hope for."