Borussia Dortmund have criticised Arsene Wenger after the Arsenal manager said Pierre-Emerick Aubameyang would fit in at the Emirates.
Wenger insisted on Thursday that the proposed exchange involving Alexis Sanchez and Manchester United's Henrikh Mkhitaryan was their only January deal close to completion.
But the Frenchman did not rule out a move for Aubameyang, who was left out of Borussia Dortmund's squad for last week's match against Wolfsburg over disciplinary issues.
Wenger said the striker would be suited to life at Arsenal, prompting an angry response from Dortmund sporting director Michael Zorc.
"We think it's disrespectful to talk like this about other players. There is no contact with Arsenal," said Zorc.
"We assume that Mr Wenger has enough to do with the performance of his own players."
Aubameyang could earn his place back in Dortmund's side if he shows a willingness to improve his off-the-pitch behaviour, the club's manager Peter Stoger said on Thursday.
Stoger held talks with Aubameyang on Monday and the player is under consideration for Dortmund's game against Hertha Berlin on Saturday.
"I'm planning the future with him, if he improves his work," said Stoger. "If something changes, I would be informed. As long as this is not happening, he is in my plans. If he behaves like he behaves right now, he will be in the squad tomorrow.
Asked if he has given up hope of Aubameyang staying, Stoger added: "I've given up holding hope for any players. Many things can't be planned.
"You can't expect that everything works out like you want it. You have to be able to have the right thought in the short-term."