(BaseballStL) -- Mitchell Boggs is heading back to Triple-A Memphis for the second time this month, the team announced on Friday.
Boggs was optioned to the minors after he blew his third save in five chances and failed to record an out in a 4-2 loss to the Kansas City Royals on Thursday night. Royals pinch-hitter Jeff Francoeur sent the second pitch thrown by Boggs for a game-tying solo home run before walking Alex Gordon, who would be the second and final batter the righty faced on Thursday.
Boggs, who was previously optioned to Memphis on May 2, appeared in four games and allowed four runs (three earned) in four innings pitched since being recalled on May 19.
As a result, the Cardinals purchased the contract of Keith Butler, a right-hander from the Double-A Springfield squad.
Butler, 24, allowed one run in 13.2 innings pitched over 13 appearances for Springfield this season. He help opposing hitters to a .163 batting average against him and fanned 21 batters during the stretch.
He becomes the ninth rookie pitcher to appear on the Cardinals roster this season.