Akin has struck out four and walked one without allowing a hit or a run over four innings across three Grapefruit League games.

Akin (back) was transferred from the 15-day injured list to the 60-day IL on Wednesday, Rich Dubroff of BaltimoreBaseball.com reports.

Akin (back) joined up with Triple-A Norfolk on Thursday to continue his minor-league rehab assignment, Roch Kubatko of MASNSports.com reports.

Akin (back) reported to the Orioles' rookie-level Florida Complex League affiliate Monday to begin a rehab assignment.

Akin (back) played catch Friday, Rich Dubroff of BaltimoreBaseball.com reports.

Akin was placed on the 15-day injured list with lower back discomfort Friday, Steve Melewski of MASNSports.com reports.

Akin (2-2) allowed four runs (two earned) on three hits and a walk while striking out two in two-thirds of an inning, taking the extra-inning loss versus the Reds on Wednesday.

Akin will serve as the Orioles' opening pitcher for Wednesday's game against the Guardians, Andy Kostka of TheBaltimoreBanner.com reports.

Akin was called up from Triple-A Norfolk on Saturday.

The Orioles optioned Akin to Triple-A Norfolk on Tuesday.