Quique always tries to minimise us, he already did it when he was at [Real] Betis," Sergio said.
What the coach is referring to is a match last season when Valladolid picked up all three points away at the Estadio Benito Villamarin.
On that occasion, Setien argued that it was tough for Betis to attack when the other team has 10 players in their own box.
"The answer has been on the pitch," Sergio added after losing to Barcelona.
"If there has been a team that has generated dangerous chances, it has been us.
"The heat and the pitch were the same for everyone."