Alba was caught by television cameras making a middle finger gesture during his side's win against Real Sociedad
"They caught me, no?" Alba said, admitting that he made the gesture after seeing the footage.
“If I offended anyone then I apologise," he added. "They were also saying all kind of things to me and I took it as part of the show.
“I didn't mean to annoy anyone. If the person that offended me knew me, I am sure they would come to dinner with me."