ANAHEIM -- After Oakland's 6-0 loss in Anaheim on Monday night, reliever Andrew Carignan was sent out to find command that betrayed him in a three-walk outing.
The right-hander threw just 10 of 25 pitches for a strike against the Halos, allowing an inherited runner to score, along with one of his own. Overall, he was 1-1 with a 6.23 ERA in five appearances.
The A's will officially option Carignan on Tuesday, when they'll not only announce a corresponding roster move for his demotion but another one in wake of Tyson Ross' callup.
"Andrew's a guy that made a lot of strides last year and had a good spring early on, too," manager Bob Melvin said. "He's a guy that we really feel good about in this organization. He's just hit a little speed bump right now, so he needs to go down and iron some things out."
Entering Monday, Carignan had not allowed a run over his past three games after surrendering two in one-third of an inning in the club's March 28 opener against Seattle in Tokyo. In seven Spring Training appearances, he posted a 2.16 ERA with no walks and nine strikeouts.
"I thought I threw really well in Spring Training, and ever since then, I've been reeling," Carignan said Monday night. "It's up to me to pitch well enough to force them to keep me here, and I haven't done that."
The top candidates already on the 40-man roster to fill Carignan's spot in the bullpen are lefty Pedro Figueroa and right-hander Neil Wagner. Figueroa has compiled six scoreless innings with seven strikeouts in four games for Triple-A Sacramento, while Wagner, despite having allowed three runs in 5 1/3 innings, has previous experience with the A's.