Koln boss Steffen Baumgart quickly turned his attentions towards containing Bayern Munich after watching his rampant side hit Werder Bremen for seven on their return to Bundesliga action on Saturday.
Baumgart's men, who began the day four points behind their visitors in the table, ended an incredible opening period 5-1 up after Linton Maina, Ellyes Skhiri and Denis Huseinbasic added to Steffen Tigges' double.
Huseinbasic's 36th-minute strike gave Koln the earliest five-goal lead in their Bundesliga history, before Skhiri's second, coupled with a Marco Friedl own goal, rounded off the scoring after the break.
While Baumgart was pleased to see Koln halt a five-game winless run in their first outing since the World Cup, he refused to get carried away ahead of Tuesday's daunting clash with the champions.
"It's a game that you won't always have, of course," he said at his post-match press conference.
"We scored five goals from the first five shots on goal. We are happy about the result. We went forward with a lot of speed and earned the goals.
"On Tuesday, however, we have a team in front of us that shot down other teams with a similar result. We know what to expect."
Saturday's win represents the first time Koln have hit seven goals in a game since a 7-0 thrashing of Eintracht Frankfurt in October 1983.
The visitors, meanwhile, are now winless in their last 11 Bundesliga trips to Koln (D6 L5).