Arsenal's coach, Mikel Arteta, really wants a new super strong defender named Marc Guehi, who plays for Crystal Palace.
He's super expensive, costing a whopping £70 million, because he's so good at stopping goals!
Another Arsenal player, William Saliba, might go to Real Madrid, so Arsenal needs a new defender to replace him.
Lots of other teams also want Guehi, so Arsenal will have to try really hard to get him on their team!
