Stroman will start Wednesday's game against the Orioles in place of Nestor Cortes (elbow), who was placed on the 15-day injured list.
Stroman had been demoted to the bullpen earlier this month and picked up a three-inning save in his lone relief appearance Sept. 17 in Seattle. He's now needed back in the rotation, at least temporarily, with Cortes out through at least the ALDS. Stroman threw 64 pitches in the outing versus the Mariners and shouldn't have much of a workload restriction Wednesday given that his other 28 appearances this season were starts.