Neither side has a win in their last two games but it is Valladolid who are in better recent form, with four points from the last seven available.
Valladolid have only lost once at home this season, while Sociedad have lost all of their away games, scoring just twice on the road.
A win for the home team would take them within a point of the European places, while Sociedad will be looking to ease any relegation worries with all three points.
Real Valladolid:: LLLWDL
Real Sociedad: LWLWLL
Real Valladolid: Jimenez, Rukavina, Valiente, Sereno, Baraja, Oscar, Ramos, Ebert, Navas, Manucho, Bueno
Real Sociedad: Zubikarai, Carlos Martinez, Inigo Martinez, De La Bella, Estrada, Xabi Prieto, Castro, Pardo, Ros, Greizmann, Vela
Sports Mole says: 2-0