With six games to go, Valencia and Real Madrid are the clear favourites in the race for the Spanish championship, but Deportivo La Coruna and Barcelona both still have an outside chance of challenging for the title.
Valencia will be confident of keeping the pressure on league leaders Real Madrid by notching a fifth league win in a row when they entertain basement side Murcia at the Mestalla on Sunday (kickoff 19.30 GMT).
A classy double from Ronaldo helped Real Madrid to a 2-1 win over Valencia that saw them return to the top of the table on Saturday as title rivals Deportivo Coruna slumped to a 3-0 defeat at Celta Vigo.
Defending champions Valencia are aiming to bounce back from a comprehensive 3-0 midweek European defeat at the hands of AS Roma when they make the tricky away trip to face Celta Vigo in the league on Sunday (kick-off 1600 GMT).
Real Sociedad will be out to prevent any further erosion of their lead in the Spanish first division when they make the testing trip to face champions Valencia at the Mestalla on Saturday (kick-off 2030 GMT).