Barcelona coach Tito Vilanova faces a battle to convince Seydou Keita to stay next season.

Vilanova would like the midfielder to remain at the Nou Camp, but Keita is unsettled and unhappy with his treatment last season.

The Mali international is angry over reports he's been offered as a makeweight in a bid for AC Milan defender Thiago Silva and is leaning more towards quitting Barca than staying.