The Catalan boss admits the fans are right to be demanding more from his side after another poor performance
Ernesto Valverde has no problem with his Barcelona side being whistled and booed by the fans at Camp Nou, with the coach calling on the players to respond after they were held to a 0-0 Champions League draw by Slavia Prague.
Barca failed to get back to winning ways following their 3-1 La Liga defeat to Levante at the weekend, piling the pressure on Valverde.
Lionel Messi hit the crossbar and he and his team-mates were frequently frustrated by Slavia goalkeeper Ondrej Kolar, who produced an inspired display in between the posts.