Last season, at the second day of the season specifically, I got my two youth players ( one is 1* and the other was 5* for 25 tokens). So I bought the player with the 5* for 25T
I think you must wear glasses

And if you are a fast trainer, you can get him to 4 or 5 stars. (Only if you have 25 tokens and you want to spend it on that youth player.
I am a fast trainer so I must give 25 tokens to make a player 4*