With 24 wins and four draws in the league this season, Leverkusen are on the cusp of going through a Bundesliga season undefeated.
"It just was a really bad game, oh my god. We started well, really well, and then didn't continue. I think even before they scored, we just lost the plot a little bit, we were everywhere and nowhere," Klopp told reporters.
Scorer of 39 goals for his club this season, Mbappe was described as "invisible" against Barcelona by newspaper Le Parisien, which pointed out that he managed just three attempts on goal during the game, none of which troubled Barcelona goalkeeper Marc-Andre ter Stegen.
Atletico Madrid earned a 2-1 Champions League quarterfinal first-leg victory over Borussia Dortmund on Wednesday, surviving a late onslaught from the visitors.
Andreas Christensen came off the bench to head in the winning goal as Barcelona won 3-2 away to Paris Saint-Germain in a remarkable first leg of their Champions League quarterfinal tie on Wednesday.
PSG play Barcelona later in a Champions League soccer quarter-final to be viewed by millions around the world.
“To me, Leo is the greatest player of all time, I did not mean to offend anyone, I just gave an honest opinion,” Ortiz said
"We're going to Barcelona with a lot of desire. It's a positive point of view to think that we can win there. It's going to be a final for us. I'm confident in my team."
Mexican side Monterrey sent Lionel Messi and Inter Miami crashing out of the CONCACAF Champions Cup on Wednesday after completing a 5-2 aggregate victory in their quarter-final clash.
A Brazilian court has suspended a $3 million fine imposed on soccer star Neymar last year for building a lake at his mansion on the outskirts of Rio de Janeiro without an environmental license.
Barcelona coach Xavi Hernandez hailed his side's 3-2 win away to Paris Saint-Germain in the first leg of their Champions League quarter-final on Wednesday, insisting it showed the Catalans could once again compete with the very best teams in Europe.
Antoine Griezmann said Atletico Madrid will have to "suffer" at Borussia Dortmund to reach the Champions League semi-finals.
Arteta's side ensured their quarter-final clash remains finely balanced thanks to Leandro Trossard's late equaliser in the first leg at the Emirates Stadium.
Pep Guardiola's men are unbeaten in their last 30 home Champions League games, stretching back to 2018.
Last season record 14-time winners Madrid tied 1-1 with Pep Guardiola's City at home in the semi-final first leg but were hammered 4-0 at the Etihad Stadium.
The hosts needed Valverde to level the match.