Bayern Munich and Borussia Dortmund are the new Bundesliga leaders, with 15 points after six days, ousting Leipzig who were beaten at Borussia Moenchengladbach.
The reigning champions defeated Cologne 2-1 thanks to goals from Mueller and Gnabry, while a brace from Hummels allowed the Gialloneri to beat Arminia Bielefeld.
Leipzig's first league defeat was signed by Wolf and allowed Monchengladbach to move up to fourth place alone.
Bayern seemed in full control of the match when Drexler scored 2-1 just minutes from the end, forcing Flick's team to strenuously defend their fourth straight win.
The partial surprise of the day, however, was the defeat of Red Bull, which so far had almost made it clear, losing two points only with Bayer.
In the other two matches on Saturday, Augusta beat Mainz 3-1 and Eintracht Frankfurt-Werder Bremen drew 1-1.
The picture of the sixth day
Schalke-Stuttgart 1-1
Eintracht Frankfurt-Werder Bremen 1-1
Cologne 1-2 Bayern Munich
Arminia Bielefeld-Borussia Dortmund 0-2
Augusta-Mainz 3-1
Mönchengladbach-Leipzig 1-0
Freiburg-Bayer Leverkusen on Sunday at 3.30 pm
Hertha-Wolfsburg at 18
Hoffenheim-Union Berlin Monday at 9pm