Arjen Robben concedes the speed with which Bayern Munich have soared past Borussia Dortmund in the Bundesliga has taken him by surprise.
Dortmund were unbeaten in their first seven league fixtures under Peter Bosz and sat five points ahead of Bayern at the summit, but a drastic change in fortunes has seen them triumph just once in their last six in all competitions.
Their slump has coincided with the Bavarians launching a winning run since Jupp Heynckes replaced Carlo Ancelotti as coach, Saturday's 3-1 Klassiker victory at BVB their seventh in a row.
Bayern now lead the way in the Bundesliga after 11 matches, sitting four points clear of RB Leipzig and six ahead of Dortmund, which Robben can scarcely believe.