Leeds boss Marcelo Bielsa has called an impromptu press conference on Wednesday evening.
The Sky Bet Championship club announced Bielsa wanted to hold an additional media briefing at their Thorp Arch training ground at 5pm.
Bielsa admitted on Friday that he was responsible for sending a member of club staff to watch Derby training on Thursday and both the Football Association and English Football League have launched investigations.
"Leeds United head coach Marcelo Bielsa has called an additional press conference for (Wednesday) evening at 5pm," Leeds said.
Leeds have apologised to Derby and reminded Bielsa of his responsibilities after Friday night's 2-0 home win over Derby was overshadowed by the incident.
Derbyshire Police revealed they moved on a man who was watching Derby's training session last Thursday.