Yup, it's Zidanenko. With his skillset you can go either way with further training, inside or outside. Great sf material. His at 74% of his potential. I'm confident he can reach 100 tsp next season easily with proper training, which could be massive for u21. But I'm not able to do that, because I train 3 hall of famers, one is top of his class and other 2 are top5 of theirs.
But if there is anybody that can do that I can sell him for 500k and even buy him back after u21 season. I am sure that is easy money for a person who is willing to do that, he will for sure sell for more. Plus a big help for u21.