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.