It's possible Roberts could be back in the Orioles lineup by the end of this homestand, but Showalter said that isn't guaranteed.
Reimold is 5-for-33 with three RBIs since joining Double-A Bowie. He also could return by the end of the week, but also isn't a sure thing.
"Anything is possible. I don't want to handicap one as being ahead of the other," Showalter said. "Robbie just ended his first day, and you couldn't ask for a better day."
Derek Wetmore is an associate reporter for MLB.com.. This story was not subject to the approval of Major League Baseball or its clubs.