The Spanish champions took all three points thanks to a Lionel Messi strike and an own goal but were fortunate only to concede once in the Czech Republic.
Ter Stegen produced a string of fine saves to help Barcelona claim the win but spoke after the match about the need to improve their away performances.
“We did not play at the level we wanted but thankfully we got the three points, which is the most important thing,” he said.
“It is necessary to talk about some things. We have to do it between ourselves, I will not say it here, but there are things to improve - a few of them.”
Ter Stegen was pushed further on what exactly Barcelona need to talk about and whether it was a tactical issue but only added the following:
“This is an internal matter as well, I don’t want to do it here. I would like to talk to those who were on the field first.
“They scored against us right on the first chance of the second half. This can’t happen to us, I was quite alone.
“He doesn’t do anything special, he takes a pass and it’s just ahead of the goal. We have things to improve, that’s a tactical thing that we didn’t go back to 100 per cent. That’s it, things that happen during a game.
Source | Movistar Plus