Real Valladolid president Carlos Suarez has admitted the condition of the Jose Zorrilla stadium pitch against Barcelona was not up to La Liga standards.
La Liga have opened disciplinary proceedings following Barca's 1-0 win at Valladolid on Saturday.
"We thought it was going to be better than it was and that it wouldn't come up as much as it did," Suarez told Cadena Ser radio.
"It's our responsibility and if a fine is given, I obviously think it will be just."
Valladolid laid a new pitch last week for their first home league game since gaining promotion after a four-year absence.