The Royals don't consider anyone on their roster untouchable, according to several baseball executives.
"They will listen on all of them," a National League source said Thursday.
The Rays asked about Greinke last week and the conversation isn't believed to be over.
Greinke makes $7.25 million this year, $13.5 million next year and $13 million in 2012. He has a limited no-trade clause for this year only.
Royals Will Listen To Offers For Greinke