A loose pass at the back was picked up by Raphinha, who fed Torres to rifle past Jasper Cillessen and seal Barcelona's win.
Barcelona got a hard-fought 2-0 win at Las Palmas to take the La Liga lead back from Atletico Madrid, who beat Valencia 3-0.
Get a recap of recent financial, health and general interest stories through this special edition of our Hot off the Wire daily news podcast.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results