Bayern Munich forward Thomas Muller and head coach Hansi Flick were united in their frustration with the Bundesliga champions' performance in Saturday's slender 2-1 win at Cologne.
Muller gave Bayern the opening goal with a penalty before Serge Gnabry made it 2-0 on the stroke of half-time with a fine effort that ultimately proved to be the winner.
Cologne pulled one back late on as they enjoyed some pressure of their own, but Bayern – who rested talismanic striker Robert Lewandowski – did just enough to take the points.
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Neither Muller nor Flick were impressed, however, with the former particularly vocal after the match.