Arsenal have been informed the price for Borussia Dortmund defender Sokratis Papastathopoulos.
The Greece international, reports BILD, is already in advanced talks with Arsenal about a summer move.
And the Gunners have been informed by BVB they can sign Sokratis for €20m.
Arsenal chief scout Sven Mislintat signed Sokratis for BVB in 2013 from Werder Bremen and knows he's seeking one last big payday.
Along with Mislintat, Sokratis would also find former BVB teammates Pierre-Emerick Aubameyang and Henrikh Mkhitaryan at the Gunners.