Leon Goretzka's future remains uncertain although there were words of praise for the Schalke midfielder from Jupp Heynckes on Tuesday.
Wolfsburg's new year began with the news that midfielder Maximilian Arnold has signed a fresh deal through to 2022.
With 2018 on the horizon, we look back at the stars who brought down the curtain on their illustrious careers.
Juventus are prepared to allow Marko Pjaca to leave on loan in January, with Schalke a possible destination.
West Ham have recalled Reece Oxford from his loan spell at Borussia Monchengladbach, who remain keen on a deal for the defender.
Chelsea are thought to be interested in Leon Bailey, but Bayer Leverkusen have no intention of selling the winger.
Borussia Dortmund president Reinhard Rauball has sympathy with Pierre-Emerick Aubameyang having to deal with persistent transfer rumours.
Arturo Vidal is a player Antonio Conte would be keen to work with, but the Italian refused to comment on links with Chelsea.
Henrikh Mkitaryan has been linked with a move back to Borussia Dortmund, but his old club consider a deal unlikely.
Runaway leaders in the Bundesliga and through to the Champions League's round of 16, Karl-Heinz Rummenigge is thrilled with Bayern Munich.