Ronaldinho put in an impressive display as Barcelona ensured they will remain in charge of the Primera Liga table following a 2-0 away victory over Real Sociedad on Saturday. Spanish international midfielder Andres Iniesta put the visitors ahead two minutes after re-start when he latched on to Ronaldinho's superb through pass before rounding the keeper and slotting into the empty net. Another deft pass from the Brazilian playmaker two minutes from time released Cameroonian striker Samuel Eto'o, who went through on goal and poked home. Catalan giants Barcelona went four points clear on top of the table on 65 points with five matches to go while Sociedad remained second from bottom with 27 points. UEFA Cup finalists Sevilla are second with 61 points, one ahead of their Sunday opponents Real Madrid.