The 21-cap Belgium centre-half, 23, is considered one of the top defenders in the Dutch Eredivisie.
And SunSport understands Gunners chiefs were trying to thrash out a deal with Ajax general manager Rik Van Der Boog.
An Ajax insider said: "It's true. He's a very good player and could certainly be a success at Arsenal."
I NEVER fail, i'm just SUCCESSFUL in finding out what doesn't workFreedom is never voluntarily given by the oppressor; it must be demanded by the oppressed.