How do you deal with player that want to force their way out

Hey guys. I'm in my third season with Roma. Won a triple crown in my second season , I have a very strong team but every now and then 4 or 5 key players want to leave for clubs that are in decline or weaker than my team. It's getting a little frustrated to deal with them every few months and they show 0 loyalty. I'm especially surprised to hear that from players that are Roma children, such as Mattia Destro and Alessio Romagnoli. Destro want to leave for Man Utd who have been in decline since my first season, and in this season they finished dead last in my UCL group. We ravaged them at home and away and somehow Destro thinks they're the stronger club. Some players want to leave for clubs that aren't even interested in them, and when I finally back down and set them for sale, nobody wants to bid for them and they're still unhappy and want to leave.

How did you guys deal with this? I can sell a few players but I cannot sell my 4-5 key players.

well sorry but u have to the best thing i found is say u will sell him if it meets your valuation.. most the time they wont even bid and if they do its usually low so u wont piss off the player if u say no.

I usually point blank refuse to speak to them, especially if it is near the end of a window, as they tend to become content again once the window closes and the team ceases to be interested. If not, then I agree with saying they'll be sold if they match your valuation (which can be ridiculously high), or once you've sorted a replacement, which you have no intention of doing.