Carneiro is claiming constructive dismissal against Chelsea and has a separate personal legal action against Mourinho for alleged victimisation and discrimination.
Croydon Employment Tribunal has set aside June 6 to June 24 for the tribunal, which is anticipated to be heard over seven to 10 days within that time frame.
The case could overshadow the start of Mourinho’s reign Old Trafford. All three parties must agree to a settlement for the tribunal, which would be accessible to the public and the media, to be averted.
Private hearings in January and February took place without a conclusion, but the case could be settled at any time.