Butler, who was promoted to San Antonio Monday from Single-A Lake Elsinore, allowed five runs on his hits and four walks in six innings in his debut with the Missions. Right-handed reliever Aaron Northcraft allowed a run on three hits and two walks with two strikeouts in two innings as 16-22 San Antonio dropped a 6-2 decision at Corpus Christi.
Jankowski also moved back into a tie for the Texas League stolen base lead with his 15th steal. Designated hitter Hunter Renfroe (.220) was 2-for-2 with a walk for the Missions.
Elsewhere:
-- Melvin Upton Jr.