BARCELONA : Robert Lewandowski and substitute Pablo Torre each scored twice to help leaders Barcelona thrash visitors Sevilla 5-1 in LaLiga on Sunday.Barca were dominant throughout the encounter at the Lluis Companys Olympic Stadium and effectively killed off the game with three goals in 15 first-half minutes starting with a Lewandowski penalty after Raphinha was fouled from behind in the 24th minute.Pedri fired a bullet strike from the edge of the box into the top corner to double their lead four minutes later and Lewandowski slotted a first-time effort from close range to net the third for the Catalan side in the 39th minute.Torre climbed off the bench to score the fourth with a shot from inside the box in the 82nd minute and, right after Stanis Idumbo netted a consolation for Sevilla in the 87th, he wrapped up the scoring with a free kick into the far corner.Barcelona are on top of the LaLiga standings on 27 points, three ahead Real Madrid in second and seven clear of Atletico Madrid in third.