Borussia Dortmund duo Mats Hummels and Ilkay Gundogan are being lined up by Arsenal boss Arsene Wenger.
According to multiple reports in England, including The Metro and the Daily Star, the Arsenal manager will prioritise a deal for Hummels, the Germany centre-back, with Gundogan also a potential target.
The Dortmund pair have been linked with a transfer since last summer but the Bundesliga club's dire position has prompted fresh speculation again with the re-opening of the transfer window.
Hummels has refused to commit to Dortmund long-term and has admitted that he has had the opportunity to leave Jurgen Klopp's side. Manchester United have been heavily linked with the World Cup winning defender, who is reportedly valued at £35m by his club.
As for Gundogan, the midfielder has overcome long-term injury concerns that have limited him to just eight Bundesliga appearances so far this season and he's valued at around £20m.
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The 24-year-old is regarded as one of the best young midfielders in world football and is reportedly keen to test himself in the Premier League at some point in his career, but he has been plagued by knee problems.
Dortmund in dire form
Dortmund boss Klopp will be desperate to keep his best players at the club over January, as the German giants currently sit second bottom of the league and in real danger of suffering an embarrassing relegation to the second tier.
But with Champions League qualification basically an impossibility unless Dortmund win the competition, many of their high profile players may be looking for new clubs sooner rather than later.
Arsenal are themselves in a battle for a Champions League qualification spot, although if history is a guide, Wenger's side are a pretty sure thing to improve over the second half of the season and pinch that fourth position.