Zolile Mthetho was originally to be the man in the middle, but he was replaced at 9am on Saturday morning following the publication of the news of Mthetho's appointment on Friday night.
The incident is likely to anger referees who feel their integrity is being questioned by the League, who do not trust them not to be influenced before the game.
It is standard practice in established leagues that the name of the cup final referee is released several days before the final as an acknowledgement of the achievement and as part of pre-cup final publicity.
Handling a major cup final like the Nedbank Cup is seen as one of the pinnacles of a referee's career, but the PSL have decided to scramble for a replacement, who is still relatively inexperienced.
The official policy of the PSL, who fear their officials might be got to by unscrupulous club officials or match fixers, is to keep their appointments secret before matches.