Everton have Mason Holgate, Yerry Mina, Michael Keane and Arsenal currently have 6 CB's including Magalhães who they just bought, so I can't imagine their board allowing Arteta buy another before they sell. Neither seem likely destinations, it's pure guesswork, you seem to think it's as easy to sell players in real life as it is in a computer game especially considering the £40m you quoted the other day (apologies if I've quoted the wrong poster). We've got a history of being unable to offload players, every club struggles in that respect unless you have ex. players dotted around the league in managerial positions.