He would have been made aware when he signed the business model of the club. He can't then turn round and have a tantrum if we sell a player for huge money.
Gyokeres and Hamer were also but they still got sold. Other assets we may have but if a team bids the money for Rudoni you cant offer them other assets can you? I get it you love him and dont want him to leave but its the way football works now.
Its rare but sometimes a player comes through who becomes a valuable asset, both playing and financially. We are still seeing some financial rewards from Maddison all these years later.
But not getting promotion mean selling our better players for both our financial sake and the players ambitions. No guarantee we get promoted with Rudoni in the team. He wasnt the difference this year was he? Nobody wants him to be sold but you have to be realistic
If newcastle come calling, as is rumoured, then there is probably very little we can do. He will want to move and they will offer enough for us to accept.