How about my countryman Nastasić? He has enormous experience (Premier league, Calcio, Bundes liga) and only 22 years! Or Subotić - he is also experienced and long term perspective player 'cause he's 26. Or Babić - he bossed serbian under 21 team defence on its way to World champion title! He is formodable defender already!
Theirs rumors of us going after Valencia's Shkodran Mustafi in January, He's 23 years old and has a 50million euro Release clause and knowing Valencia they want the full amount.
and we also have First option on a Dude named Marlon Santos who plays for Fluminese.