Still seems a strange signing to me , not seen him play and therefore dont know much about him. Im not one to roll along with all this "In Rafa we trust" rubbish
I would like to think that he watches every player he signs very closely and numerous times before he signs them, but there have been a few that have not made the grade just as there has been a few who have. Rafa has shown he is not perfect in the transfer market by any means but no manager is or has been and nobody knows exactly if a certain player is going to adapt to the prem no matter how many times they watch them play or how well they perform for for their previous club.
So im going to reserve judgement on Vornonin until ive seen him play a few times, after all i never ever thought Crouch would be half the player he is for us and he was already established in the prem