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."
Stoger stated earlier on Thursday that Aubameyang was in contention to feature against Hertha despite ongoing rumours about his future.
"It's clear that it [transfer speculation] is exciting for everyone, but it was really not an issue for us," he said.
"If he goes with us [to Berlin], of course he could play as well, but there is no guarantee for anyone.
"Basically, he decides whether he qualifies for this team. I currently have the impression that everything is OK."
Aubameyang was left out of Stoger's squad for a 0-0 home draw with Wolfsburg last weekend after missing a team meeting.
He was also temporarily suspended by the club earlier in the campaign due to disciplinary issues, his poor time-keeping reportedly the problem.
Zorc previously said he does not feel that Aubameyang's behaviour is an attempt to force a move away from Dortmund in the same vein as Ousmane Dembele, who went on strike ahead of his club-record switch to Barcelona.
Despite an unsettled season, Aubameyang is BVB's top goalscorer in the Bundesliga with 13 goals in 15 appearances.
|England not polished article - Shaw|
|Dembele staying focused after ´genius´ praise from Pochettino|
|Spain survive scare, USA cruise in World Cup qualifying|
|Shapovalov moves into Delray Beach Open semis|
|Davis, Jokic star with huge performances|
|Alli doesn´t dive, says Hodgson|
|Timberwolves star Butler suffers knee injury|
|Penguins acquire Brassard in three-team trade|
|Verdasco ends Thiem´s Rio Open title defence, Monfils exits|
|Salah has world´s best left foot? Don´t forget Messi – Klopp|
|Pochettino: Vertonghen one of Europe´s best defenders|
|He hasn´t raised the bar – Wenger plays down Guardiola success|
|Woods stays solid as List, Lovemark lead|
|Cake and victory for birthday boy Pouille|
|Klopp ´really proud´ of Firmino after Holgate case dropped|
|Munster upset Warriors as Leinster crush Southern Kings|
|Bouchard ´vindicated´ after USTA settlement|
|Warriors fall to impressive Wolves, Saints stay perfect|
|Conte: Chelsea´s winning mentality can´t be questioned|
|Benching Willian was a fantastic decision, boasts Chelsea boss Conte|
|Juventus critics don´t know Tottenham, says Pjanic|
|Hull City 1 Sheffield United 0: Dicko blunts Blades´ promotion chase after fan protest|
|Bastareaud stars as France get off the mark against Italy|
|Jaguars reward Marrone & Coughlin with two-year extensions|
|Lukaku tipped for ´big things´ by United team-mate Matic|
|Kasatkina saves three match points to stun Muguruza|
|Emery hopes Classique can inspire Real Madrid comeback|
|I thought he was an actor! - Valverde dodges Arthur questions|
|Valverde hints at resting Messi, Suarez for Girona clash|
|Napoli sign free agent Milic|
|Barclay labels England ´massive favourites´ for Calcutta Cup|
|Johnson tells England: Don´t give Scotland ´scent of victory´|
|Zidane offers condolences after Basque police officer´s death|
|FA charge Guardiola over yellow ribbon protest|
|City have to lift titles - Guardiola focused on Wembley glory against Arsenal|
|Spalletti urges Inter to ´believe in our strength´ and end wretched run|
|Best unconcerned with Sexton fitness|
|Christensen a future Chelsea captain, says Conte|
|Fonte leaves West Ham for Dalian Yifang|
|Guardia Civil search Guardiola family´s plane|
|Unwell Neymar facing race to make Le Classique|
|Playing Chelsea means less and less every year, says Mourinho|
|Conte hopes Manchester United bench ´fantastic´ Pogba|
|Dembele ´a genius of football´ like Maradona and Ronaldinho, claims Pochettino|
|Otaegui surges into slender lead in Qatar|
|Villarreal suspend Semedo after attempted murder allegation|
|Jesus could return but Guardiola has doubts over Sterling|
|He took 10 seconds to be ready – Mourinho salutes professional Pogba|
|Alderweireld a doubt as Pochettino stays silent on transfer rumours|
|Conte dismisses Mourinho tension|
|Nothing is decided - Klopp urges against Liverpool complacency|
|Heynckes ´can´t imagine´ Bayern sanctioning Lewandowski sale|
|FIFA closes Neymar´s Barcelona bonus case|
|Bale still important to Real Madrid, Zidane insists|
|Heynckes plays down Robben´s frustration|
|Central Coast Mariners 1 Wellington Phoenix 0: Hosts end 11-match winless run|
|Arsenal handed tough Milan test in Europa League´s round of 16|
|Europa League: Last-16 draw in full|
|I am the lion of the jungle - Wilder ready to pounce on Ortiz|
|Vitolo apologises for sexist ´joke´ after Atletico win|
|Paletta joins Jiangsu Suning|
|Messi, Ronaldo and Neymar are the only superstars, says Pele|
|Rebels capitalise on Higginbotham red, Highlanders beat Blues in thriller|
|Arsenal have ´unfinished business´ in EFL Cup after 2011 loss - Wilshere|
|Srna given 17-month doping ban|
|Winter Olympics 2018: Larocque apologises for silver-medal snub|
|Arsenal boss Wenger backs Wilshere after Keane rant|
|Basque police express ´dismay´ at death of officer after fan violence|
|Jones was alarmed by England´s lack of fitness|
|Wembley hero Ramsey winning race to face Manchester City|