Borussia Dortmund are keeping a close eye on Arsenal captain and central defender Laurent Koscielny, according to the latest reports in England.

The Daily Mail is claiming that the France international Koscielny’s long-term future at the north London outfit remains uncertain with less than one year set to run on his current contract.

The same article claims that the Gunners could allow the Frenchman to leave in the upcoming transfer market as Unai Emery aims to continue his rebuild at The Emirates Stadium.

Bundesliga giants Borussia Dortmund are planning to secure defensive reinforcements following their disappointment in the Bundesliga title race.

A British newspaper adds that Arsenal board could be tempted into selling the player to raise much-needed funds to back their head coach this summer ahead of his second campaign in charge.

Arsenal finished in the fifth place in the Premier League the previous term after narrowly missing out on a Top 4 finish due to Chelsea and Tottenham Hotspur’s late surge.

They had the opportunity to secure a return to the UEFA Champions League by winning the UEFA Europa League but Unai Emery’s men suffered a 4-1 loss to city rivals Chelsea in Baku.

The north London heavyweights haven’t won a major title in the last two terms – and Arsenal haven’t won the EPL crown since the 2003-04 campaign when Arsene Wenger’s men went unbeaten throughout the season.

Meantime, according to The Sun, Gunners have been priced out of a summer deal for Yannick Carrasco as Dalian Yifang demand £30m for his services.