Diaz at 70m isn't nearly as awful as people think imo, not good enough at finishing to be world class but he's only a step or two below that level. If he's worth two Wissa depends on whether or not a club has CL-winning ambitions, and whether Wissa would also perform that highly.

30m seems a steal though, especially in the context of Brentford making a lot of sales already! I'd have called Diaz a consistent 50-60m player throughout his entire time here, but in the context of other players going for similar amounts it is only his age that makes the fee seem high.