He has struggled to repeat that success, however, since signing a permanent deal and has made only five league starts this season.
He was given a suspended nine-month prison sentence last November for refusing to take a breathalyser test after being suspected of drink driving.
Earlier this month, he was found to be over the legal limit while driving to training, after which his coach Quique Setien declared he should leave the club.
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Araujo expressed regret about his conduct in an interview with Radio Marca on Thursday.
"I apologise for not giving 100 percent in the top flight and for my attitude off the pitch," he said. "The president has told me to come back in July and play like I did in the Second Division."
(Reporting by Richard Martin; Editing by Toby Davis)
