Chelsea are reportedly interested in reuniting with former defender Antonio Rudiger as Xabi Alonso considers strengthening his defensive department before the January transfer window opens.

As reported by The Athletic on Monday, November 9, 2026, the west London club are weighing up the possibility of bringing the Real Madrid star back to Stamford Bridge to address their ongoing defensive problems.

Although Alonso has overseen some impressive results since taking charge, including wins against Manchester United and Bournemouth, Chelsea have found it difficult to deliver consistent performances. Their progress has been disrupted by injuries and weaknesses at the back.

The situation has become increasingly concerning following Maxence Lacroix's injury, while the performances of Levi Colwill and Wesley Fofana have raised questions about the reliability of Chelsea's defensive options.

While replacing Enzo Fernandez in midfield remains one of the club's major priorities, the report highlights the importance of recruiting an experienced central defender to strengthen the squad.

Rudiger could be an attractive option, having previously established himself as a key figure during his time at Chelsea. His leadership, physical presence and experience could address some of the qualities currently missing from Alonso's defence.

The German international played a significant part in Chelsea's 2021 Champions League success under Thomas Tuchel before completing a move to Real Madrid in 2022.

At 33, he possesses considerable experience in top-level football, which could be particularly valuable in helping younger defenders like Colwill and Fofana develop their defensive awareness and decision-making.

The Blues have already recognised the importance of experience in other positions, bringing in Jordan Henderson to strengthen their midfield and Danny Welbeck to add depth to their attacking options. However, central defence was an area they failed to reinforce with a similarly experienced signing during the summer.

There could also be a financial opportunity for Chelsea to pursue Rudiger. With his Real Madrid contract approaching its final stages, the Premier League side could potentially reach a pre-contract agreement or negotiate a cheaper deal during the January transfer window.

Former Chelsea striker Charlie Austin has previously voiced his desire to see the defender return to Stamford Bridge, insisting that the club made a mistake by allowing him to leave.

"They should never have let him go, or allowed him to go," Austin said.

Austin also believes Rudiger would be an ideal replacement for the leadership and influence Thiago Silva brought to Chelsea's defence.

However, the potential deal is not without risks. Rudiger's age and previous injury problems could become significant factors, especially considering the demanding nature and intensity of English football.

Even so, his return could represent a valuable opportunity for Alonso to bring experience and leadership into his defensive unit while helping Chelsea's younger players develop under the guidance of a proven defender.