Manchester City goalkeeper Joe Hart has called for improvement after the 1-1 UEFA Champions League draw with Borussia Dortmund.
The England international was in cracking form to deny the Germans what would have been a deserved victory, and admits the Premier League champions must get better quickly if they are to stay in Europe's elite club competition.
He said: "I don't know if it is a learning curve - we are in with the big boys now, there is no place to hide.
"There is no point learning if you are not going to win. We need one big game against Ajax next.
"We got a point against one our rivals to qualify from the group and maybe we shouldn't have.
"We've not played great and they have played well and we've come out with a point, hopefully we can move forward with that."