The Belgians arrive in Brazil tipped as dark horses for the tournament with what is being heralded as a 'golden generation' that includes Hazard, Dries Mertens, Vincent Kompany and Adnan Januzaj among others, and Wilmots says he has so much quality at his disposal that even the Chelsea star has to cement a starting berth.
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"Nobody is guaranteed to start the game, even Hazard," Wilmots Sportwereld. "Each player is perfectly replaceable."
However, when asked whether he had already settled on his starting lineup for the World Cup opener against Algeria, Wilmots said: "Of course. But I do not want you to know the team.
"I've also been through, as an analyst, the guesswork for the team. Now it's up to you to guess. This is a World Cup, I want to play hide and seek."
Wilmots' men kick off their campaign against Africa's top-ranked side, Algeria, before coming up against Russia and South Korea in Group H.