AC Milan vice-president Adriano Galliani has revealed they brought Marco Borriello back to the club from Genoa on recommendation of transfers chief Ariedo Braida.
He explained: "Borriello will be fit for the derby.
"I admit he gives us depth. Braida said he was better than (Arsenal striker Emmanuel) Adebayor. Why should we spend big on Adebayor when we have him?"