Borussia Dortmund have left Pierre-Emerick Aubameyang out of the squad for their trip to Hertha Berlin, with sporting director Michael Zorc questioning the striker's mentality amid reports he is close to joining Arsenal.
Dortmund hit out at Arsenal boss Arsene Wenger after the Frenchman suggested the Gabon international would be a good fit at Emirates Stadium during his media conference on Thursday.
Aubameyang has been strongly linked with a switch to Chinese Super League side Guangzhou Evergrande Taobao, but he is also reportedly a target for the Gunners as a replacement for Alexis Sanchez, who appears set to join Manchester United.
Zorc labelled Wenger "disrespectful" for speaking about Aubameyang and confirmed ahead of Dortmund's match against Hertha on Friday that the 28-year-old would not be included in Peter Stoger's squad.
"Auba trains in Dortmund," Zorc told reporters. "We have the impression that Aubameyang is not 100 per cent mentally focused. It's a difficult situation."
