Mohamed Salah scored the fastest-ever Champions League hat-trick as Liverpool dominated Rangers in the second half.
Rangers suffered their biggest defeat in a competitive match at Ibrox thanks to Liverpool’s sensational second half, in which they scored six goals.
This was a timely boost for Klopp’s team, who face Manchester City on Sunday.
“It changed the mood definitely,” Klopp said.
“It’s completely different. We usually drink a beer after away games but it’s that long ago I drunk a beer I’ll probably be drunk after one. Yes it changed the mood completely but we all know who we are welcoming on Sunday and this will be a different game, but it’s better to go into it with this feeling we’ve got tonight than any other.”
Two goals from Roberto Firmino propelled Liverpool to victory, and his wonderful flick set up Darwin Nunez’s second goal in as many games.
Salah seized control after coming on in the 68th minute, scoring the first of his three goals on 75 minutes and securing the match ball with two more merciless finishes against the weak Rangers defence.
When asked about Salah’s hat-trick, Klopp said: “Special. Typical Mo. Very important, the whole thing, how the boys adapted to it, to the positions, to the line-up, the reaction of the boys on the pitch, I thought everybody who started tonight played really well.
“I can’t think of one player who didn’t have a good game, the two kids right and left wing really good, Fabio [Carvalho] and Harvey [Elliott], and when you can change like we did tonight and the boys come on ready to contribute then things like this can happen.
“A freak result, we all know that, and we don’t make more of it than we should, but obviously it’s the best we could have asked for and I’m pretty pleased.
“I’m always ready for a change in the right direction. We’ll see. We don’t have to make a big thing of it but the best football team in the world right now is waiting on Sunday and coming to Anfield.
“We’ll see what we can do. It was for us – for different reasons – incredibly important. Now we have to recover.”