Real Madrid's Portuguese forward Cristiano Ronaldo celebrates after scoring during the Spanish league football match between Real Madrid CF and Real Sociedad at the Santiago Bernabeu stadium in Madri. Pic/AFP

Real Madrid warmed up for next week's Champions League tie at home to Paris Saint Germain with a comfortable 5-2 win to Real Sociedad in the La Liga. Real Sociedad travelled to Madrid with the fourth worst defensive record in the Liga Santander and they fell behind after less than a minute as Lucas Vazquez, who was in the side for the rested Gareth Bale, opened the scoring, reports Xinhua news agency.