Player lockdown,
Ability to close a player to loan and transfers.
This allows the team to put this player up for sale as a last resort when the team goes bankrupt.
This option will prevent you from selling the player you bought for sponsor mission.

For once, it's an interesting idea. 👍🏻

Yes, I think it's an interesting idea, but not just when the team is bankrupt, but also when you want to show the manager that you no longer need to negotiate for your player

Ancelloti: Oui je trouve que l'idée est intéressante mais pas juste lorsque l'équipe est en faillite mais aussi quand l'on veut montrer au manager que vous n'avez plus besoin de négocier votre joueur

Great point 👍

A very good idea, which would make it possible to block offers for players you don't want to sell

iMcCarthy77: Très bonne idée qui permettrait de bloquer les offres sur les joueurs qu'on ne souhaite pas vendre

That's right, and in turn it would allow buyers to target only those who are potentially purchasable and for whom the club opposite is prepared to talk