The Twins will option Keirsey to Triple-A St. Paul on Saturday, Betsy Helfand of the St. Paul Pioneer Press reports.
Keirsey appeared in four games during his first career stint in the majors, during which he went 1-for-10 with a strikeout and an HBP. He'll be sent back to the minors to clear space for Carlos Correa (heel), who is due to return from the injured list Saturday.