Kim, 32, had been slotted into the relief unit after battling for a starting job in camp. He has made just one relief appearance, picking up a save but allowing an earned run on two hits.
The southpaw will step into the rotation spot left when Carlos Martinez recently hit the injured list. Whether Kim can hang onto a rotation job will depend upon many factors, with his performance and the duration of Martinez’s absence likely chief among them.
Kim, a long-time Korea Baseball Organization standout, joined the Redbirds over the offseason. He’s earning at a $4MM rate this year and is guaranteed the same in 2021, with an annual $1.5MM incentive package also available.