Germany's 3-2 defeat to Belgium in a friendly on Tuesday was attributed to a poor start by coach Hansi Flick and captain Joshua Kimmich.
Coach Hansi Flick praises Borussia Dortmund's Emre Can and Marius Wolf after they were called up to the Germany squad.
RB Leipzig have been boosted by the return of forward Timo Werner to training from injury.
Bundesliga side Eintracht Frankfurt are aiming to hold on to all of their key players during the January transfer window.
The Premier League was the leading division at the tournament, with a total of 33,786 minutes shared between 121 players, ahead of Spain’s La Liga (18,343) and Germany’s Bundesliga (14,289).
Bayern Munich goalkeeper Manuel Neuer is out for the rest of the season after breaking his leg.