Saarloos has a 29-30 career record with Houston, Cincinnati and Oakland. He spent most of last season at Triple-A Sacramento, going 9-4 with a 4.22 ERA in 22 starts. The 29-year-old pitcher also went 1-0 with a 5.47 ERA in eight games for the Athletics.
On Sept. 19, Saarloos struck out a career-high 11 against the Indians.
Aquino has made 135 relief appearances over five years with Arizona, Milwaukee and Baltimore. A converted infielder, he made nine appearances last season for the Orioles and missed a long stretch of the season because of a strained hamstring.
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