I don't know about that but having players like Santacroce, Maggio, Zuniga, Hamsik, Lavezzi, Denis, Quaglierella and Cigarini makes them pretty dangerous.
It's just 50%. They don't mention the money they paid though. They just say that they used their right and their right was to buy 50% not the full ownership.
that is alot of money for half. they will eventually want the other half so hopefully another 5.5 will come in and we wont do the stupid auction thing that happens sometimes.
I am stilll hopeful Juve go for Cissokho but I think he is too expensive for Juve atm.
There was also another right to buy the other half but Juve could counter it if they still wanted to co-own the player. Genoa's site only mention they used their rights to keep him.