Unai Emery's date with destiny: Aston Villa's master tactician returns to Barcelona with a chance to banish his old demons... and show why he is football's hottest managerial property, writes OLIVER HOLT

OLIVER HOLT: Unai Emery, the man of the moment, the manager whose name is on everybody's lips, the man that others would make their king, walked into the cavernous press room.