Pitcher Sidney Ponson was designated for assignment by the Royals on Sunday and Kyle Davies was being recalled to take his spot in the rotation.
Ponson had a 1-7 record and a 7.36 ERA in 14 games including nine starts for the Royals. In his last start on Friday night, he was tagged for seven runs in 4 1/3 innings by the Tampa Bay Rays.
Davies, since being optioned to Triple-A Omaha on June 20, had a 4-2 record and a 2.14 ERA in eight starts. In 46 1/3 innings, he gave up 47 hits and 14 walks with 44 strikeouts. For the Royals this season, Davies was 3-7 with a 5.76 ERA in 14 starts.
The change means that Davies will start on Wednesday night against the Seattle Mariners in Kansas City.
The Royals have 10 days in which to put Ponson on waivers, trade or release him. Manager Trey Hillman indicated that, if he clears waivers, the Royals would offer Ponson a spot at Omaha.