Toni is a free agent after being released by Bayern Munich.
Preziosi said: â€œHe will be unveiled next week at the Genoa Foundation.
â€œLuca is the biggest investment in our history. He will give us satisfaction.
â€œGenoa's situation is one of calm. Our squad is already 90 per cent complete and the fact we don't have to make any further sacrifices is positive.
â€œWe must only defend what we already have like Criscito and Papastathopoulos whose futures have been confirmed."