Celtic midfielder Arne Engels says his side have shown they can match Bayern Munich and must believe they can do so again in the away leg of their Champions League tie next Tuesday.

Speaking after the 2-1 first-leg defeat at Celtic Park on Wednesday, the German insisted his the Scottish champions could take plenty from the game.

"There are a lot of positive points. We just need to keep on believing in ourselves. We're still in the game and that was the aim.

"We have shown we can match Bayern and it's up to us now to go there and believe we can do something. We don't need to change a lot.

"I think we are improving in every aspect. We can be compact and you saw in the last 20 minutes that we really can hurt them."

Engels thought he might have had the opportunity to score from the penalty spot when he was challenged by Bayern defender Dayot Upamecano.

No foul was awarded on the field and, although referee Jesus Gil Manzano was called to the monitor to review his decision, he stuck with his original ruling.

"I felt something on my foot and I thought it was a penalty, but I heard from the guys that he slightly touched it with his toe," Engels said.

"I think if the referee needs to go to the screen maybe it would have been a penalty, but it wasn't. So we had to keep on going."