The Royals outrighted Little to Triple-A Omaha on Thursday.
Little was claimed off waivers by the Royals in August but never pitched for them at the major-league level. The lefty reliever has collected a 2.97 ERA over parts of four seasons in the majors, but he's also got a 1.40 WHIP and 17.6 percent walk rate. Little will remain in the organization as bullpen depth.