The Twins reinstated Acton (shoulder) from the 60-day injured list Saturday and optioned him to Triple-A St. Paul, Dan Hayes of The Athletic reports.
Acton landed on the injured list in late April with a strained right shoulder but began playing in rehab games July 11. Since then, he's given up four runs in 9.2 innings across three levels. Now fully healthy, he'll stay put at Triple-A and provide organizational bullpen depth.