Celtic's Moussa Dembele said Wednesday's Champions League encounter with Paris Saint-Germain had been "good for two minutes" as the Scottish Premiership leaders were thrashed 7-1.
Both teams are six points clear of their nearest domestic rivals at the top of their respective leagues, but there was a gulf between the pair at the Parc des Princes.
Edinson Cavani and Neymar both scored twice as Unai Emery's men ran riot in a fifth successive win, taking their group-stage tally to a competition-record 24 goals with a Group B match still to come.
Dembele opened the scoring for Celtic inside the opening 60 seconds, notching the only goal PSG have conceded in the group stage so far. However, that was as good as it would get for Brendan Rodgers' men, who were then swept aside.
"Everyone will only keep the defeat in mind. I scored, it was good. It was good for two minutes," Dembele, a former PSG youth academy talent, said.
"After that, reality came galloping up on us. We lost this game. There are things to bear in mind, to learn. In the first 20 minutes, we were in the game and we let it get away from us.
"When you play against players of that quality, you pay dearly. We have to learn from our mistakes. We knew what we were getting into."