Blackpool chairman Karl Oyston has admitted a Football Association charge of misconduct relating to text messages with a supporter of the club.
It is alleged the 47-year-old referred to Stephen Smith as a "retard" when the fan criticised him.
The FA asked Oyston for his observations in January and issued a formal charge in March.
Oyston admitted to five breaches of FA Rule E3 and a hearing has been scheduled for Tuesday.
He has previously admitted sending the "unacceptable" texts in response to "a barrage of abuse" he received after his phone number was put on social media.
Oyston has also apologised "unreservedly" for the messages, which were sent in December.
During the text exchange, he is said to have used a number of swear words and also allegedly called Smith "educationally subnormal" and a "sad act".
It is also claimed he told Smith to "enjoy the rest of your special needs day out".
In April, Championship side Blackpool became the first team from any of the top four divisions to be relegated.
The next day, Blackpool fans threw fireworks and eggs before their 1-1 draw against Reading in a protest against the club's owners.