The Twins activated Adams (triceps) from the 15-day injured list Thursday and optioned him to Triple-A St. Paul.
Adams has been shelved all season with a triceps injury but has made five rehab appearances, allowing six runs with an 8:3 K:BB over six innings. The last three of those outings came at St. Paul, and the Twins will keep him there rather than put him on the big-league roster.