Tonali, Chiesa (maybe) and Castrovilli.
It all depends on who we choose to "sacrifice" in the summer. I feel Khedira and possibly Matuidi should be on their way out, probably Can and Bentancur too. In attack, maybe Costa will be sold (if he suffers too many injuries/doesn't regain form) and Mandzukic already has one foot out the door. I hope Dybala isn't sold, but you never know with the new guy.