Bundesliga side Borussia Dortmund is set to make a move for Arsenal captain Laurent Koscielny who could be allowed to leave the club this summer.

Dortmund are keen to reinforce the defence with experienced players ahead of next season in a bid to challenge rivals Bayern Munich for the title. The Frenchman made his comeback for Arsenal last season, following a long spell on the sidelines recovering from an Achilles injury.

Koscielny is contracted to the club until the summer of 2020, with Arsenal knowing the only time to recoup a fee on the player would be in the current window.

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