The Merseysiders were noticeably less intense than usual at the Emirates, though did take the lead shortly after the restart through Milner only to be pegged back late on by Alexandre Lacazette.
Klopp admits his side did not press as effectively as they usually do, and Milner – who was captain in Jordan Hendersons absence – also spotted the problem and was furious with how the team were playing at half-time.
Klopp explained: When you have a compact formation you give the opposition the opportunity to pass into a certain place and then you press. Its not that complicated.
But Arsenal had two or three options to pass the ball, and that makes life pretty uncomfortable for the three midfielders. We were too high on the wings.
Weve done it outstandingly well in the past but we didnt do that in the first half.
Millie [Milner] was the one who saw it for us. He was not happy about it, he was animated.
Thats how it is in the dressing room. A lot of men with testosterone. Usually the only one talking is me, but sometimes before I start talking the boys have a few words.
Its good that we could change it at half-time. And he was the right person to score the goal.
More: Arsenal FC