Former Chelsea first-team doctor Eva Carneiro has arrived for an employment tribunal against the club and former manager Jose Mourinho.
Dr Carneiro is claiming constructive dismissal against Chelsea and has a separate, but connected, personal legal action against Mourinho, who left the club in December, for alleged victimisation and discrimination.
The case, which is anticipated to be heard over seven to 10 days until June 24, is due to open at Croydon Employment Tribunal, but it could be settled at any time.
All three parties must agree to a settlement for the tribunal, which would be accessible to the public and the media, to be averted.
Dr Carneiro arrived at the London South Employment Tribunal in Croydon in a powder blue coat and cream dress, holding hands with her husband, polar explorer Jason De Carteret.
She was criticised by Mourinho and dropped from first-team duties after she went on to the pitch to treat Eden Hazard during a draw with Swansea on the opening day of the Premier League season last August.
Then-manager Mourinho angrily berated her and physio Jon Fearn after they went on to the pitch.
Their action meant that Chelsea were temporarily down to nine men, and afterwards Mourinho called Dr Carneiro and Mr Fearn "impulsive and naive".
Dr Carneiro did not appear on the bench again for first-team duties and later parted company with the club.
Chelsea filed their defence in the tribunal hearing last December and another private preliminary hearing was held in January.