Cruz is on the Dominican Republic roster but he remained in the Royals' camp Monday after signing a two-year contract Saturday. Most players reported Monday to the Classic training camps.
Asked on Monday if he planned to play in the Classic, Cruz replied: "I don't know yet."
Royals officials said the matter was between Cruz and the Dominican team.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.