Stewart (shoulder) threw 20 pitches to live hitters before Friday night's game, Bobby Nightengale of the Minneapolis Star Tribune reports.
The right-hander has been on the shelf with shoulder tendinitis since early May. He's had several bullpen sessions in the past few weeks, and the advancement to live hitters could be an indication he's ready for a rehab assignment. However, no schedule for the next step of his comeback has been announced.