Stephenson (back) is with the Reds on the current road trip, and manager David Bell said he'll be activated soon, Bobby Nightengale of The Cincinnati Enquirer reports.
EDGE Analysis
The 27-year-old wasn't activated for Sunday's series finale in St. Louis, but he seems likely to rejoin the active roster during the four-game set in Milwaukee, which begins Monday. Stephenson made one appearance before landing on the injured list in late July with the back strain.