Chelsea Transfer Rumours and News Tracker: Week of December 29

The opening of the winter transfer window is upon us, and the rumour mill is beginning to kick into gear.

Chelsea are among the clubs being linked with high-profile moves for some of Europe's finest talents, while some stars of their own are catching attention.

As always, Bleacher Report will keep you up to date with the latest breaking news on the ins and outs at Stamford Bridge.

Stay tuned to keep on top of all the rumours surrounding your club.

Last update: Monday, Dec. 29 

Fernando Torres Returns to Atletico Madrid

Antonio Calanni/Associated Press

He signed a two-year loan deal with AC Milan in the summer, but Fernando Torres has now re-joined boyhood club Atletico Madrid just four months later.

Torres' Chelsea career was all but over when he joined Milan in August—the loan deal bringing him to the end of his Chelsea contract—but things didn't quite work out for him in Italy.

As a result, in a convoluted deal, Milan made Torres' signing permanent last week before swapping him with Atletico for Alessio Cerci, per BBC Sport.

As for Torres, he used Twitter to make his feelings on the transfer known:

"

At last back home. Thanks to all that have made this dream come true. Forza @Atleti. #TorresHaVuelto pic.twitter.com/HZjMI5v6Gl

— Fernando Torres (@Torres) December 29, 2014"

Chelsea Face a Fight for Seamus Coleman

Mark Runnacles/Getty Images

Chelsea have a fight on their hands if they're to sign Seamus Coleman.

The Daily Star reports Manchester United are also interested in the Everton right-back and are ready to launch a bid for him in January.

Chelsea already have Cesar Azpilicueta and Branislav Ivanovic on their books, but they are still chasing the Irishman.

United themselves reportedly tried to sign Coleman in the summer, but a swap deal with Marouane Fellaini fell through.

Everton also want to bring Adnan Januzaj to Goodison Park on loan, and it's believed Coleman could be used as a makeweight.