2 actually, Marchisio and Melo. Depending on his fitness we'll either sign Aquilani or another quality CM next summer and probably give chance to Ekdal, at least that's what I'd like to see.
Well we'd save 25 millions, that should help to improve our defense significantly. If we move for Dzeko, I'm sure the rest of the signings will be more or less cheap squad players + full rights for some of our loanees.