
a 4th striker? just think for a moment how many strikers Madrid, Barca, Bayern, PSG, Chelsea have. if Juve keep a 4th striker

that would be at the expense of a quality forward which Immobile is not.
if Juve bring him back that would be -€10m from Juve's existing funds, if Juve sell that could be +€10m in addition to existing funds, so that's €20m that could be added towards a top player when considering opportunity cost, same as Giovinco's situation. Immobile is a must sell if Juve wants to land a top player.