Indeed, Valdano likened the performance of Matias Almeyda's Sevilla to a Marcelo Bielsa-led team.
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He said on Movistar +: "PSG left Barcelona a little vulnerable.
"Barcelona became aware of some of their own weaknesses," highlighting that they showed them "especially in the last 30 minutes of the match".
Moving onto Sunday, Valdano said: "I think the tremendous heat that must have been there in Seville had an influence.
"There was overwhelming pressure. Man-to-man pressure in a 'Bielsistic' style match, which suffocated Barcelona's midfielders."