The experienced coach has stressed that no player is more important than the Turkish powerhouse as the Dutchman continues to stall over a transfer
Both clubs have already reached an agreement over a winter transfer, but the Dutchman is in no rush to make a decision about his future, with deadline day just under a fortnight away.
"Nobody should think that they are bigger than this club. Not me, not the club president, and not those who could join the club this transfer window," the former Turkey boss said at a press conference when asked about Sneijder.
"We do not want to sign any players who think they are more important than Galatasaray. This is one of the key principles at this club and it is not up for debate."
Galatasaray face stiff competition from Liverpool in the race for Sneijder's signature, as revealed by Goal.com earlier this week.