Valencia 2-0 Sevilla: Roberto Soldado netted a brace to lead Valencia to a comfortable victory over Sevilla at Estadio de Mestalla.
The hosts took the lead five minutes into the second half when Adil Rami redirected Piatti's corner towards goal and Soldado popped up to steer it home from close range.
The result was secured two minutes from full time as Soldado scored his second with a headed finish from Ever Banega's corner kick.
Valencia moved up to seventh in the standings and are one point off the top four while Sevilla are down in 12th.
Real Valladolid 3-1 Real Mallorca: Patrick Ebert opened the scoring in the 22nd minute but his strike was negated by Victor (38). Oscar put the hosts back in front two minutes before the full-time whistle and Ebert completed his brace in stoppage time.
Espanyol 1-0 Celta de Vigo: Sergio Garcia's lone strike in the 24th minute was enough to secure all three points for the hosts at Estadi Cornella-El Prat on Saturday night.