Pellegrino made huge changes to the side .
As expected , the visitor came out on top : the 6 - 0 win was Barcelona 's biggest in the league of the season and the fourth time it has hit for six this season .
Pellegrino made huge changes to the side , and as expected , the visitor came out on top : the 6 - 0 win was Barcelona 's biggest in the league of the season and the fourth time it has hit for six this season .