CELTIC striker Moussa Dembele went from hero to villain in the space of three days.
But the frontman, who scored a hat-trick on Saturday and missed a penalty-kick last night, insisted the experience will help him to become a better player.
Dembele reflected on the seven-goal thrashing from Barcelona at the Nou Camp and said: “Of course, it was a disappointing night for us against one of the best teams in the world.
“We let them play a little too much and, hopefully, the next time we won’t make the same mistakes.
“But you have to learn from playing against big players and you have to see what they are doing.”
Dembele could have nullified Lionel Messi’s third-minute opener when the Hoops were awarded a penalty-kick 20 minutes later after he was pulled down by the keeper.
However, Marc-Andre ter Stegen threw himself to his right to push away his effort from the spot and Messi doubled Barca’s advantage exactly two minutes and 46 seconds later.
The 20-year-old Frenchman explained: “I tried to put the ball in the sidenetting, but the keeper saved it.
“In football, sometimes you score and sometimes you miss. I have to forget and do the next one.
“Now we have to keep working hard, learn from our mistakes and move on.”