If his agent is a proper twat, maybe hes asking city for 40Ok a week??
I think the agent being a proper twat refers to his treatment of Arsenal.
@BillyShears mentioned something about his agent not messing about when he said things were speeding up last week as well.
I assume the agent has basically gone into great detail about how shit he and his client will make things for Arsenal next season if he's still at the club.
Sanchez knows he's going to be starting for Chile even if he doesn't play a single game next season, so other than wasting 9 months in his hunt for silverware, I don't think Arsenal have any leverage over Sanchez.
Im also not surprised by talk of his agent being an arsehole - if reports are to be believed he actually went to Bayern Munich and asked for €10m a year more than their top earner, which is a massive fuck off and waste of everyone's time, he could have just said Sanchez didn't want to go there.