Borussia Dortmund boss Jurgen Klopp says that Real Madrid would have "no chance" of beating Bayern Munich if the pair clash in this season's Champions League.
The 46-year-old coach led Die Schwarzgelben to a 4-3 aggregate win over Los Blancos in the semi-finals of last season's Champions League, only to lose 2-1 to their Bavarian rivals in the tournament decider at Wembley.
With Bayern having seemingly gone up another level since Pep Guardiola replaced Jupp Heynckes at the helm during the summer, Klopp now feels that Bayern are simply unbeatable.
"Real Madrid would have no chance of competing with Bayern," he is quoted as saying by A Bola. "Bayern are currently unstoppable.
"If the likes of Real Madrid and Manchester United have no chance against them, how can Dortmund beat them?"
Klopp, whose Dortmund side are currently 12 points behind Bayern in the Bundesliga having played a game more, added that while Barcelona are capable of beating the Bavarians in a one-off game, even the Catalans would be unable to eliminate them over two legs.