(CNN) -- Atletico Madrid goalkeeping legend Abel Resino has returned to the Primera Liga club as coach in succession to Javier Aguirre who was dismissed on Monday.
Mexican Javier Aguirre leaves his farewell Atletico media briefing followed by club president Enrique Cerezo.
Sunday's home defeat to Real Valladolid saw Atletico slip to seventh in Spain's top flight and Mexican Aguirre agreed to leave 24 hours later after meeting club president Enrique Cerezo.
The 49-year-old Resino left second division promotion chasers Castellon to fill the vacancy and will coach Atletico at least until the end of the campaign.
Apart from arresting the club's current league slump of just two points from the last five games, Resino must plot Atletico's two leg Champions League clash against FC Porto with the first leg at home on 24 February.
Aguirre, who joined Atletico from Osasuna in 2006, is the seventh Spanish coaching casualty this season.
"After speaking face to face with people, the players, the press, I leave with a clear conscience," said Aguirre who is confident Atletico can recover to clinch another season of Champions League football.