Luciano Spalletti's side, who suffered a first defeat in seven games, became the seventh different Italian outfit to fall victim to the Blaugrana on home soil in major European competition
Xavi has found it painful to see Champions League matches knowing Barca are out of the competition, but considers the Europa League as a chance to add a new trophy to the club's haul
"It's a tough, very sad situation," Xavi said in a press conference after the match. "It's hard to digest but you have to face it... start from zero," the head coach of Barcelona added