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.
|Pogba not struggling at United, claims Deschamps|
|Escape Messi´s shadow? Change sport! - Henry´s advice to Neymar|
|Horsing around: Muller takes tips from equine companion|
|Ronaldo jets off for a break as Madrid head to Leganes|
|Mistake to let Kroos leave Bayern for Madrid - Sammer|
|Spalletti tips Ancelotti for Italy job|
|Mendy on course for World Cup, says Deschamps|
|Man Utd on dismal knockout run, Roma have Shakhtar curse - Champions League in Opta numbers|
|Azpilicueta hoping for greater fortune at Camp Nou|
|Out of nothing he can score goals – Heynckes hails Muller|
|CONCACAF Champions League Review: Giovinco inspires Toronto, Tigres held|
|Ranieri: I´ll quit Nantes if offered Italy job|
|Barcelona are great even without Neymar – Willian|
|Conte wants to see out Chelsea contract but has bags packed|
|Messi goal will give Barcelona more space at Camp Nou – Suarez|
|Conte defends ´incredible´ Christensen after Barcelona error|
|Bayern taking nothing for granted after 5-0 demolition – Heynckes|
|Valverde: Barcelona away goal not definitive for progression|
|Muller & Robben bemoan poor first half despite Bayern rout|
|Chelsea close to a perfect game against Barcelona - Conte|
|Defending for 90 minutes at Barcelona a ´suicide mission´ - Fabregas|
|Championship Review: Villa miss chance to move into promotion places|
|Messi ends his Chelsea hoodoo|
|Chelsea 1 Barcelona 1: Messi breaks Blues hoodoo to leave tie in the balance|
|Bayern Munich 5 Besiktas 0: Two-goal Muller inspires emphatic win after Vida red|
|De Vrij confirms intention to leave Lazio on free transfer|
|Sanchez move down to Champions League frustration at Arsenal - Mourinho|
|Mourinho suggests Pogba is fit to face Sevilla|
|AFC Champions League Review: Hulk & Oscar lead Shanghai, Jeonbuk Motors hit six|
|Cech expects Ospina to start for Arsenal in EFL Cup final|
|Gueye signs new Everton deal until 2022|
|FA charges Man City and Wigan for failing to control players|
|Aguero faces no action over Wigan fan incident|
|Las Palmas get green light to sign Viera replacement amid Nasri talk|
|FA issues West Ham with anti-doping charge|
|Florenzi a doubt to face Shakhtar, confirms Roma´s Di Francesco|
|Maybe we ´lock him up or tie him up´ – Montella ponders how to stop Sanchez|
|Pogba and Ibrahimovic train with Man Utd ahead of Sevilla tie|
|Zidane hints at resting Ronaldo for Real Madrid´s trip to Leganes|
|Modric adds to Real Madrid injury worries|
|Wolfsburg turn to Labbadia in fight for Bundesliga survival|
|Wigan to investigate pitch invasion after win over Manchester City|
|Drogba ´couldn´t be more proud´ as son signs for Guingamp|
|Stones making no excuses for shock Wigan defeat|
|Bellugi scathing of Inter form and transfer policy|
|Rakitic: I´ve not seen Messi in the gym this often|
|Besiktas face Bayern test, Messi seeks to end drought - Champions League in Opta numbers|
|Sevilla v Manchester United: Montella and Mourinho unified in pursuit of identity|
|Jose Morais: The Mourinho acolyte bringing Barcelona to Barnsley|
|Rakitic: More to Chelsea than just Hazard|
|Klopp tactics behind my form – Salah|
|Young: Man United can win Champions League|
|Messi is best but ´not invincible´, says Pedro|
|It´s a red card – Guardiola accepts Delph sending off amid City´s Wigan woe|
|Aguero lashes out at fan as tempers flare after Wigan stun Man City|
|Grigg revels in dousing Manchester City´s fire|
|Wigan Athletic 1 Manchester City 0: Grigg ends Guardiola´s quadruple dream|
|Messi the best but don´t forget Suarez, says Chelsea boss Conte|
|I need a great game – Hazard aiming for Messi heights|
|AFC Champions League Review: El-Arabi´s brace seals Al Wahda´s fate|
|Barcelona boss Valverde tells Chelsea: History counts|
|Schmidt departs as Wolfsburg face relegation fight|
|Madrid, Barca & PSG are Champions League favourites, says Heynckes|
|Former football coach Bennell sentenced to 31 years|
|Hummels wary of ´top European team´ as Bayern prepare for Besiktas|
|WATCH: ´Crazy´ Evra drives to West Ham training in London cab|
|Barca clash a chance for Chelsea ´to do things right´, proclaims Rudiger|
|Lucas claims Tottenham can win Champions League|
|Barcelona tie will not decide Conte´s Chelsea future, says Deco|
|Lewandowski won´t be distracted by Real Madrid rumours|
|Man Utd must not underestimate Sevilla - Navas|
|Iniesta will not be made welcome at Stamford Bridge, warns Azpilicueta|
|Ballack sees ´a big difference´ between Bundesliga and Premier League|
|Betis boss would have preferred to face Madrid´s BBC|
|Chelsea v Barcelona: Messi´s blues against the Blues|
|James leaving Madrid was the best thing, says father|
|He´s looking good – Zidane thrilled with Ronaldo|
|It needs to take 30 seconds – Matic wants quicker VAR|
|Gattuso: My job is to be the players´ nightmare until season´s end|
|I wasn´t good enough – Guardiola reveals Wigan rejection|
|Brazilian derby between Vitoria and Bahia abandoned after red-card frenzy|
|It was crazy, but I like that - Zidane revels in eight-goal Betis thriller|