Honestly I don't really care about this challenge even thou all my starting players except my RB are U-23. Every time nordeus gives you free tokens they don't do it out of charity, they have something to gain. We saw it with the daily rewards (I was like wow cool), then they introduce the new transfer system.
It's unlikely the will give us tokens for hat-tricks and that kind of stuff, I mean think about it when you lose they take two morale packs from you on top of the players decreased morale.