Barca meet Napoli in the second-leg of their round 16 tie.
Okdiario's chief pundit Eduardo Inda, speaking on El Chiringuito, stated: "Xavi Hernndez has communicated to his environment, not to the board, that in case they were eliminated he would resign the position of coach of Barcelona.
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"I would do it already. It must be said that Bara has a problem. It has several trainers looked at. They like De Zerbi and Flick and fear that in Bara that Xavi will leave before and if that happens they will put in (Rafa) Mrquez.
"If they put Mrquez in and he's having a good season, you have to keep him. If you have a pre-contracted coach that would be a financial mess. If they lose, without a doubt, the season would have ended for Bara."