Thanks for the advice Nuno. I do that if the special sponsor skills do not touch any Greys for my attackers. But it still seems insufficient to maintain a good level in the coming seasons. At 80 tokens, it is still not worth it for me as Julien mentioned. But if it drops to 60 tokens and below in 2 seasons when he is 29, I will have to give him a boost then so that he can stay on my first team even after 30 till retirement.