Daniel Caligiuri scored a brace against his old club as Wolfsburg's unbeaten run came to an end with a 2-1 loss at Schalke.
Borussia Dortmund restored their six-point lead at the top of the Bundesliga with a 1-0 victory at RB Leipzig.
According to reports, several big names could be making moves this week, and our friends at Football Whispers are here to bring you the latest news from across Europe.
Defending champions Bayern Munich got the Bundesliga back underway with a 3-1 win at Hoffenheim on Friday.
The latest news and gossip from the January window, with updates on Higuain, Arnautovic, Coutinho, Wilson and more.
Borussia Dortmund II coach Jan Siewert is under consideration to take over from David Wagner as head coach of Huddersfield Town, according to Sky sources.
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