Liverpool manager Jurgen Klopp steered clear of referee criticism after his team's 2-2 draw with Brighton.
The Reds had to settle for a point in the Premier League on Sunday, despite leading 2-1 in the game.
There was refereeing controversy after Pascal Gross only received a yellow card, despite a last man penalty foul on Dominik Szoboszlai.
"I didn't even realize at the time to be honest," Klopp stated post-game.
"When it was a penalty, I didn't think about a red. But I've heard now it was about whether it was a goal scoring opportunity.
"Can I ask the question here? Do you think it was a goal scoring opportunity? Hands up! I haven't seen it back yet. Oh, a few hands up!
"What can I say about that? I'm over it. I'm too old for these kind of things. It won't change it."