Silly season has returned as the January transfer window has opened, bringing with it a slew of transfer rumors in the Bundesliga and Europe overall.
In Germany, several top players have been linked with moves within the domestic league and abroad, including Lewis Holtby and Robert Lewandowski. Several players abroad have also been rumored to move to the Bundesliga, either for the first time or in a return. These include Marko Marin and Johan Djourou.
Every transfer season brings many more news stories than actual transfers, though, and it can be a challenge to sift through the reports and distinguish between the likely and the far-fetched. Click "Begin Slideshow" to begin a rundown of all the hottest rumors, analyzing what moves are realistic this January, and what are little more than idle rumor.