The 18 year old Hungarian youth international has only been at St James's park since January of this year, after signing from Zalaegerszegi TE, where he made 14 appearances and scoring once, after making his first year debut at the age of 16.
With just Shacks and The Doc being the only recognised first team centre backs, his arrival would certainly be an added boost for the team.
Kadar also spent a time on trial with Bolton, before being snapped up by The Toon