Interestingly Napoli has had interest in both Verdi & Balotelli, which could mean a front 3 of Insigne-Balotelli-Verdi. Look familiar? Mancini was using that a few days ago in training.
I remember that on FI they said 10M but yeah he definitely worth 10M...
Get him play him as a rotation player - If he impresses he can play more if he doesnt we can sell/lose that 10M investment which is nothing nowadays...