"Tapping up" is what it's called here.
Highest profile case of it I can recall was around Ashley Cole's transfer from Arsenal to Chelsea.
Of course, Pastore's club may have given him permission to hang around with Galliani.
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I was thinking more of the issue of the gap between what he is earning at PSG and what Napoli could pay him than his theoretical availability.
Would he take a pay cut?
Would PSG pay him to leave?
Highest profile case of it I can recall was around Ashley Cole's transfer from Arsenal to Chelsea.
Of course, Pastore's club may have given him permission to hang around with Galliani.

- - - Updated - - -
I was thinking more of the issue of the gap between what he is earning at PSG and what Napoli could pay him than his theoretical availability.
Would he take a pay cut?
Would PSG pay him to leave?
