Leeds United owner reportedly had second thoughts over his own superstition.
The Frenchman is expected to confirm his loan switch this week, with the Yorkshire Post writing last week it was 'awaiting completion.'
Cellino has a well documented 'fear' of the number 17, with the BBC reporting last year how he made sure his former club Cagliari did not have a seat in the stadium with the number, instead 16b.
It is no coincidence either that no Leeds United player wears the squad number 17, and his suspicion of the number he believes brings bad luck, has reportedly delayed the Ngoyi deal.
Granddi Ngoyi was born on May 17th, and TMW report: "The President indeed had doubts about the midfielder, but not so much of a technical nature, but related to the date of birth of the player."
The report went onto state that Cellino's doubts went away when he saw Leeds beat Bournemouth in midweek, perhaps with his enthusiasm for the club rejuvenated.
Cellino is now of coruse officially on a leave of absence, but the beginnings of the deal to bring the Palermo midfielder in on loan began early this month.
It will now be up to Ngoyi to disprove his theory about the number 17, and show he can help lift the side's fortunes, rather than dampen them.