Unable to hide his frustration, Klopp said: "The penalty situation is a weird situation, I don't know if the ref can see it, but you look at it and I'm not sure how you can say it's not a penalty. I’m pretty sure someone will explain it to me about why it wasn’t a handball, but I don’t know how.
"I don't say the ref can see it because I have no clue where he was at that moment. But that's another question. When somebody sits in the office, how can they not come to the conclusion that it might be worth having another look at it."