Gerard Pique's absence leaves Barcelona with Clement Lenglet as their one fit central defender, given Samuel Umtiti and Ronald Araujo are also out injured.
Sergi Roberto capped the biggest comeback in Champions League history when he stretched to turn home Neymar's dinked cross to the delight of a near 100,000 at a rocking Camp Nou, making the score 6-5 on aggregate in FC Barcelona's favour.