Pierre-Emerick Aubameyang's recent behaviour has been met with bafflement by his Borussia Dortmund bosses.
The striker was dropped for last weekend's Bundesliga clash with Wolfsburg for skipping a key team meeting. It was the second time this season he has been banned by his club for 'disciplinary reasons'.
The 28-year-old is a reported target for Arsenal as a potential replacement for Alexis Sanchez, who is expected to depart the Emirates this month.
'Disappointment is the wrong expression,' Dortmund coach Peter Stoger said in an interview with Sport Bild when asked about his feelings toward the Gabon international.