Arsenal are ready to sell captain Laurent Koscielny this summer.

Borussia Dortmund have expressed interest in the French defender - and the Gunners have now set a price to sell.

The Daily Star says Gunners chiefs will demand £10.6million for Koscielny from any potential suitors.

It's believed Emery has been told he needs to sell players to boost his transfer budget.

The Spaniard could replace Koscielny with St Etienne youngster William Saliba.

Reports in France have suggested Arsenal are in advanced talks with the 18-year-old.