If Chelsea look like they're 80% likely to get Neymar then, you, as an attacking midfielder, need to think hard about what other teams are saying. The minute Neymar deal fails, you become that much mroe attractive to Chelsea, and Arsenal goes down your list. The players are weighing these things all the time. Ashley Young might be a hard one to get right now if United are all over him, but if United got, eg, Bale, then he might have to consdier Arsenal or other options more seriously. It's not simple, but I do think this type of dynamic is at play