Absolutely insane (thick) not to insert one, especially in today’s market…Unfortunately Kane and his (Agent) Brother only have themselves to blame. Kane signed a 6 year contract without inserting a buy out clause.
As for the Gentlemen's agreement, we're talking about Daniel Levy, and his mate Johnny Ball, think of a ridiculous transfer figure and stick to it.
Save the money and go all out for Haaland next Summer. And try and blow the usual suspects out of the water.