The Reds host United on Monday night in a clash with could already affect the title race.
And Klopp, who won the Manager of the Month award for September, has told Liverpool fans their team needs them.
“Very intense game, two good sides. The situations are not that different – it’s three points. They have big quality and we have to respect this, as we do,” he said.
“But this is Anfield. We have to show this. We have had a few nice atmospheres but I’m open for the best atmosphere.
“We need everybody in a Liverpool shirt in this game.”