Madrid - Celta Vigo's collapse in form continued as a much-changed side was swept away 3-0 by an on fire Malaga on Sunday.
Ahead of Celta's trip to Manchester United in the second leg of their Europa League semi-final, coach Eduardo Berizzo made nine changes from the side that lost Thursday's first-leg 1-0.
And again the Galicians lack of strength in depth showed as goals from Javier Ontiveros, Recio and Sandro Ramirez condemned Celta to a sixth league defeat in seven games.
Malaga, by contrast, have now won six of their last seven to leapfrog Celta into 11th.
Earlier, highly sought after left-back Theo Hernandez registered his first professional goal with a stunning strike to hand Alaves a 1-0 Basque derby win over Athletic Bilbao.
Hernandez is on loan till the end of the season from Atletico Madrid, but Real Madrid and Barcelona are among a host of suitors ready to pay his 24 million euro buyout clause.
Valencia thrashed already relegated Osasuna 4-1 with Argentine international defender Ezequiel Garay scoring twice.
Deportivo la Coruna failed to guarantee their survival in the top flight for next season as they were beaten 2-1 at home by Espanyol to remain five points above the drop zone.