Imanol Alguacil defended his players and insisted Real Sociedad had deserved to win their match against Espanyol in La Liga on Sunday.
Real Sociedad missed the chance to snatch top spot in the league from Real Madrid when the 1-0 loss ended their 13-match unbeaten league run.
Venezuelan international Yangel Herrera scored his first goal for Espanyol since joining on loan from Manchester City.
Top spot could change hands later on Sunday if Sevilla beat Real Madrid in the capital.