Dortmund play hardball with Arsenal for Aubameyang
Arsenal have been heavily linked with a January move for Aubameyang, but earlier this week manager Arsene Wenger said the club were "not close" to any deal.
CEO Ivan Gazidis travelled to Dortmund as part of an Arsenal delegation trying to wrap up a deal for the Gabon striker, with Dortmund reported to want the Gunners' Olivier Giroud as part of any deal.
Speaking ahead of BVB's home match against Freiburg on Saturday, Zorc told Sky: "Either our demands are met and there will be a transfer, or they aren't met and Auba will play in Dortmund until summer.
This is how we discussed it with his family [the player's father is his agent] and how it is agreed upon. We have a clear position. We're ready, with certain conditions, to make a transfer happen, but only when all conditions are completely met.”
"So far Arsenal have tried and we've rejected everything."