The righty is expected to resume starting duties with the River Cats, having already compiled a 1-1 record and 2.45 ERA in three starts for them this season.
Straily was on hand in Oakland to make his first start for the A's since April 6, when he fanned a career-high 11 batters in 6 2/3 innings in a win over the Astros. He was optioned to Sacramento the next day when Bartolo Colon was reinstated from the suspended list.
Straily was 3-0 with a 0.96 ERA in three starts with the River Cats, allowing a .159 opponents' average without surrendering a home run in 18 2/3 innings. He struck out 20 and walked six.
Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.