Borussia Dortmund 7-1 Celtic: What the manager said

Speaking at the post-match media conference, Celtic manager Brendan Rodgers said: "It was a tough watch, to be honest. We weren't at our best. They showed why they are a top, top team. We didn't make the start we wanted.

"I don't think I've been involved in a game where every mistake got punished. Any misplaced pass seemed to end up in the back of the net.

"At this level, away from home against a top team, you need to be at your highest level and we were not there. You can see the quality that they have.

"That's the learning that comes away from this level. We got spooked early on. Very quickly we go 2-1 behind and they get a foothold in the game, and we have to chase it.

"We went in high in confidence. We felt we were in a really good place. We had to start much better than we did, as we gave away really cheap goals. And we got punished for loose bits of play and passes. They were ruthless in their finishing. It was incredible to see.

"It's very difficult for us to get to that level. It's a different level, with the greatest respect. We want to be more competitive, that's what was disappointing from our perspective.

"My job is to go away and inspire the players again. We need to learn from it or we will get punished at this level."