Their personalities have rubbed against each other for a while now. It played out behind the dressing-room door, away from the cameras.
Outlook
Repeated incidents may damage dressing-room status.
Struggling to settle into the squad
Minor
Cause
The settling-in period at a new club is the bigger picture. The language gap is making integration harder.
Outlook
Manager intervention may be required if it persists.
Dreams of genuine first-team football
Moderate
Cause
He has spent years in the reserves and wants a real chance at first-team level. (He has spent season after season on the bench without a real run of starts.)