He's a diva loud and clear. Look at how professional Sancho has remained at BVB despite the links and bid from MUFC. In contrast, when Barca was sniffing around Dembele, he refused to respect Dortmund. He's a scummy kind of guy with little respect for anyone but himself. His poor behavior has been ongoing for years. He never learns and frankly, the further he's away from the club the better. Dembele won't do much to integrate into the team at all.
https://bleacherreport.com/articles/2806752-the-trouble-with-barcelonas-wayward-star-ousmane-dembele#:~:text=Dembele explained he was suffering,to rest for the day.
"Barcelona's training that morning began at 11 a.m. There was no sign of Dembele. The club tried to contact him. His phone was on silent. Eventually, 30 minutes later, club delegate Carles Naval got through to him,
per Sport. Dembele explained he was suffering from gastroenteritis.
When a doctor called to his house half-an-hour later to assess him, the blinds on his house were drawn. Most of Dembele's friends were asleep in the house. The doctor couldn't detect anything wrong with Dembele and told him to rest for the day.
The worry is that Dembele is more interested in playing PlayStation than with Barca. As well as lacking professionalism off the pitch, he's displayed a brainlessness and lack of patience on the football side. "