Ernesto Valverde wanted to keep Barcelona's feet on the ground after their 3-0 win over Liverpool so he hit his players where it hurt.
"Liverpool are a team that can make any opponent suffer," he said in the press conference after the match.
"And of course last year we had a three-goal advantage in the quarter-finals. And we were knocked out."
"This match did us some harm. We want to erase that and have a beautiful season to forget it. We want to soothe the scar."