DeJesus and his wife Kim welcomed their first child, David Kingston DeJesus Jr. The baby weighed 7 pounds 10 ounces and was 20 inches.
Royals manager Ned Yost said he didn't know when DeJesus would return, but thought it would be soon.
"I told him to take care of momma and take care of the baby," Yost said. "When everything is done, then we'll figure that out."
-- Samuel Zuba