Polish star Robert Lewandowski led Barcelona to a convincing victory over host Deportivo Alaves 0-3, in the ninth stage of the Spanish League.
Lewandowski scored the three goals (a hat-trick) in the first half, in the 7th, 22nd and 32nd minutes.
Lewandowski raised his tally of goals to 10, sitting on the throne of top scorers in La Liga.
Barcelona leads the league with 24 points, 3 points ahead of second place Real Madrid.