goon How much is he likely to cost?
I've seen a lot of articles claiming he has a €50m release clause. Others say it is increasing, to 65 now and maybe more later. Weird, maybe it is indexed to performance somehow. Or maybe it's just BS.
Would strike me as more of an option type signing than a needle mover but given Kai's form I don't necessarily think that'd be a bad thing, it'd give him time to bed into the team, learn Arteta's demands and develop as a player.