The two clubs are still some way apart in their valuation of the player but Arsenal remain confident of securing a deal
Borussia Dortmund are growing frustrated at Arsenal's refusal to meet their asking price for Pierre-Emerick Aubameyang, Goal understands.
The Premier League club have already reached an agreement on personal terms with the Gabon striker, and are locked in talks over a fee with BVB.
But so far their offers have fallen short of what the Bundesliga side want for their star, who was left out of their weekend clash against Hertha Berlin.