Three years after leaving the club to join Bayern Munich, experienced centre-back Mats Hummels is reportedly 'on the verge' of a return to Borussia Dortmund.
The 30-year-old, who played 33 times last season, is in advanced negotiations with his former club in a deal worth around €30 million, according to Sky Sports journalist Torben Hoffmann.
"We can confirm the information." he wrote on Twitter. "Mats Hummels is close to a return to BVB. Negotiations are very far advanced. Nothing has been signed yet."
Hummels will have to take a paycut on his current €12 million a year salary if he is to re-join Dortmund but talks are believed to be concrete.
German publication BILD also suggest that Bayern manager Niko Kovac wouldn't oppose to selling the defender.
The Germany international spent seven successful years at The Westfalenstadion, winning the league and cup double in 2011/12 season, as well as establishing himself as one of the best defenders in world football.
He then joined former side Bayern Munich in 2016, where he spent his youth career, in a deal worth a reported €35 million.
It's rare that Dortmund buy from their rival club, but they have sold a number of their star players to Munich in years gone by.
The Black and Yellows have felt the full force of Bayern's dominance in the transfer market but It was reported last year that bosses at the club have passed an internal resolution - there will be no more player transfers to Bayern in the future.
Is is believed that in order to permanently challenge their rivals for the league title in the coming years, they have decided that no more star players will be handed over to their direct rivals.
The fact that Christian Pulisic decided to join Chelsea for a reported 64 million euros instead of joining rivals Bayern may have been the first sign of this new ruling.
With the likes of Jadon Sancho, Paco Alcacer and Marco Reus firing on all cylinders, as well as the additions of Julian Brandt, Thorgan Hazard and Nico Schulz this summer, the club will undoubtably challenge for silverware next season.
Especially if Mats Hummels comes in and strengthens things up defensively.