Although the article pointed out that there is no medical evidence to support concerns based upon the type of procedure or the time he took to recover being quicker than usual.
Then there are advances in surgical techniques and treatments.
At the end if the day if our medical and high performance teams were to give him a green light then I'd be fine with it - if not then we move on.
I suspect Koulibally is going to cost more than VVD so we aren't going to sign him, Dembele, Pepe etc any time soon because there is still too much work that is needed across all areas to be able to look to spend top dollar on quality in one player as yet.