Marco Reus
London bound? Marco Reus could join Chelsea.Reuters

Chelsea are reportedly weighing up a move for Borussia Dortmund forward Marco Reus in January, offering his Germany teammate Andre Schurrle to the Bundesliga outfit in exchange.

Reus has been strongly linked with a move to England since last summer, with Arsenal, Liverpool, Manchester United and Manchester City all credited with an interest in the 25-year-old, and the Blues seems to have entered the scene now.

The Germany international is understood up for grabs for around £20m next summer, due to a release clause in his contract.

Reus has so far refused to sign an extension with Dortmund, which takes out or improves the buyout clause, and the club recently admitted that the negotiations over a new contract have stalled, pretty much admitting that it's difficult to keep hold of the player now.

If Reus refuses to sign a new contract soon, Dortmund might be forced to sell him to an overseas suitor, especially with archrivals Bayern Munich - who are very much capable of matching the release clause - publicly expressing their interest in the forward several times of late.

With the Borussian chiefs desperate to avoid a Mario Gotze-like situation, Chelsea seem to be keen to take advantage of the state of affairs, with a player-exchange proposal.

The Blues are considering offering Schurrle to Dortmund when the January window opens, in exchange for Reus, according to the Express.

Schurrle has a contract with Chelsea till 2018 but the former Mainz and Bayer Leverkusen could be tempted by a return to Germany, especially with the lack of first-team action under Jose Mourinho of late.

Reus, on the other hand, could be open to a move to Stamford Bridge, with Dortmund struggling on the domestic front yet again - this time finding themselves just above the relegation zone - while the Blues look like they will run away with the Premier League title this season.

Despite being marred by injury issues, Reus has been in top form this season, notching five goals and three assists in 10 appearances for Dortmund in all competitions so far.