Wolfsburg needed a second-half fightback to win 5-3 at Werder Bremen, while Borussia Monchengladbach beat Paderborn 2-0.
Wolfsburg refused to lie down as they inflicted the first defeat of the 2015 on Werder Bremen with a stunning 5-3 win.
Security will be tightened around Werder Bremen's game with Wolfsburg after police warned of a possible terrorist attack.
Kevin de Bruyne reckons he failed to make an impact at Chelsea because of his "small transfer fee".
Bas Dost scored his eighth and ninth goals of 2015 as Wolfsburg claimed a 2-1 win over Hertha Berlin on Sunday.
Wolfsburg's Andre Schurrle says he has "never experienced such a crazy game" after beating Bayer Leverkusen 5-4.
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