I get all that. Doesn't explain how Arsenal will behave any differently (they won't). We won't get him in January. Arsenal will ask too much and try to dick us around just like they did. Why wouldn't they? We will put in a desultory low bid; they'll say no and that will be it until summer. We aren't going to relive this movie. Not even sure him putting a transfer request changes it. Arsenal will look like even bigger idiots to their fan base if they sell him to us for a third of August's price four months later.
Arsenal accepted our bid for him, they don't need to behave any differently. Wenger wanted him out at the end.
But now they'll have 4 months to find the replacement, and 4 months of Sanchez being a complete cancer in the dressing room, bitching and moaning and pulling the media spotlight on them to act as a motivator.