This one is tricky...anyways:
1. Busquets- as usually did his job invisibly, but so greatly. Celtic could not reach over the half, except some dead balls.
2. Neymar- caused a headache to defenders, Celtic had to pull out Lustig to avoid him getting red and reduce to 9 men. Finishing (and shots) were poor, though.
3. Bartra- well played, well played
HM: Pique- gets too few credits cause everybody turns their attention to Bartra, but I think he was solid. Good interceptions.
Alexis- obviously,changed the game.