Kjerstad (concussion) began a rehab assignment with High-A Aberdeen on Saturday and has gone 2-for-5 with a walk and a run over his first two contests with the affiliate.
Kjerstad served as Aberdeen's designated hitter Saturday, then played five innings in right field Sunday. He'll likely remain in the minors during the upcoming week as he looks to regain his timing at the plate while he's been sidelined since late July while recovering from a concussion. Once Kjerstad is activated from the 10-day injured list, the Orioles may not have regular playing time available for him at the big-league level, so he could be optioned to Triple-A Norfolk.