- Winter transfer window open 1 Jan - 31 Jan.
- Malli leaves Mainz for Wolfsburg.
- Badstuber joins Schalke on loan.
It is deadline day in the winter transfer window and, as ever, bundesliga.com was on hand to provide confirmation of all the official last-minute comings and goings.
Clubs had until 18:00CET/17:00 on 31 January to submit details of any agreement to the Deutsche Fußball Liga for the deal to go through. Recap the day's comings and goings below.