Stephenson will take the mound against Atlanta on Saturday unless he pitches Wednesday in a relief role, Mark Sheldon of MLB.com reports.
Stephenson was recently reinstated from the 10-day DL (shoulder) this past Sunday, and appears to be headed toward a return to the starting rotation, for one start at the very least. The right-hander came out of the bullpen during Sunday's game against Milwaukee, tossing two scoreless innings with a trio of strikeouts. His last start came on Aug. 2 versus the Pirates, where he allowed one earned run while striking out four in 5.2 innings.