Barcelona coach Pep Guardiola has refused to comment on Miguel Lasa's performance in the Blaugranas' 1-1 La Liga draw against Sevilla on Sunday evening.
The referee waved away spot kick claims after an alleged foul on Bojan Krkic inside the box and also disallowed a Lionel Messi goal in the first half.
"The referees always do their utmost. I'm a representative of the institution Barcelona. I don't want to talk about the disallowed goal of Messi. A Barcelona coach doesn't discuss the referee's performance," said Guardiola in the after match press conference.
The Barca boss then moved on to talk about his side's performance and made it clear that he was fairly pleased.
"We put in a good performance against a great team. Maybe we deserved more than a draw after our first half performance. Sevilla improved after the break and showed their great mentality," he added.
"Overall I'm quite satisfied with how we played. We always try to control the game, but sometimes you face a strong opponent. We didn't lose though and never stopped trying."