Graham Potter Brighton
The 21-year-old made four first team appearances for the Amsterdam giants last season and arrives on undisclosed terms.
Albion head coach Graham Potter said: “We’re delighted to welcome Kjell to the club. He’s a player we have been monitoring for a while and we see him as a player with a lot of the right attributes. As well as his size, he is someone we think will work very hard to improve all aspects of his game as he gets used to English football. We wish him all the best and look forward to working with him.”
