The German coach was characteristically animated on the touchline throughout the 90 minutes and then conducted a typically lively post-match interview with BT Sport.
He also spoke to BBC Sport and produced a classic reaction to the news that Mainz, one of his former employers, had beaten the mighty Bayern Munich. (Scroll down this page to watch the video).
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Pep Guardiola’s side suffered their second Bundesliga defeat of the campaign at the Allianz Arena - a result that sent shockwaves across Europe.
Bayern were expected to go on and win the match after Arjen Robben scored the equalising goal midway through the second half - Jario Samperio had put Mainz ahead in the 26th minute - but an 86th-minute winner from Jhon Cordoba stunned the German champions.
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Video: Klopp reacts to Bayern Munich defeat
Bayern are now just five points clear of Borussia Dortmund, another of Klopp’s former sides, and it’s clear that the current Liverpool boss would love to see Guardiola’s side knocked off pole position before the end of the campaign.
Speaking to BBC Sport, he commented: “I know about the other results, as well, so I heard… Bayern lost.” Cue manic laughter from the revered German coach.
Klopp couldn’t hide his delight and had to let it all out.
Double blow for Pep Guardiola
Wednesday night saw Guardiola suffer a double blow. Not only did his current employers lose, but so too did his next club.
Manchester City have now lost three consecutive Premier League matches and find themselves 10 points behind league-leaders Leicester City in fourth place.
Furthermore, Manuel Pellegrini’s men are now level on points with fifth-placed Manchester United and just one ahead of sixth-placed West Ham.
There’s a real possibility that Guardiola will be managing in the Europa League next season unless Manchester City get their act together and finish the season on a high.
With the likes of Sergio Aguero, David Silva and Yaya Toure at their disposal, there’s no doubt the recently-crowned Capital One Cup winners are underachieving in the Premier League.
Perhaps the early announcement that Guardiola will replace Pellegrini at the end of the season has affected both Manchester City and Bayern Munich in an adverse way.
Klopp warned Pep he could find it hard next season
Bayern should still win the Bundesliga - making it a hat-trick of title wins for Guardiola at the Allianz Arena - but Klopp warned Guardiola last month that he won’t find it as easy in England.
“I really wish all the people around the world the best of luck but we plan to avoid that! Manchester City is a club with not-too-bad possibilities on the financial side, shall we say, and Pep Guardiola is a really smart person,” Klopp was quoted as saying by the Guardian last month.
“He won’t have chosen Man City because of his friendship with a few people there. They won’t have the worst team in the world next year but I love football because that doesn’t mean everything. As we have shown once or twice you can beat these teams.
“We will see what happens but I cannot be interested in this now like everyone else is. I will see him for the first time maybe in July or August, that’s a long time from now. He will enjoy the league because it is a great league and a real competition and he is a real competitor. That is what he wants. I don’t think it will be the same situation as he had in Spain, with Barcelona on the top level, or in Germany with Bayern on the top level, but of course Man City has good possibilities. We will try to beat them.”
Will Manchester City be in the Champions League or Europa League next season? Have your say by leaving a comment below.