Reimold may remain on the paternity list for one to three days. The Orioles also have on off-day on Thursday before a weekend series against the Nationals.
"Nolan left last night," manager Buck Showalter said before Monday's game. "I haven't heard yet from Nolan. I'm trying to leave him alone. I hope everything went well today. They were expecting -- in more ways than one -- but hoping [wife Jennifer] would have it today, but I haven't bothered him yet. I haven't heard yet. He'll be there as long as he needs to be."
Flaherty, a second baseman, has bounced between Double-A Bowie, Norfolk and the Majors this year as he's rehabbed from injuries. He's played in 51 games with the Orioles and was hitting .248 with 20 RBIs in 153 at-bats entering Monday. He was optioned after Jonathan Schoop was activated from the 60-day disabled list.
Reimold, who has mostly played left field for the Orioles this year, was called up from Norfolk on June 9 and has hit .244 in 41 at-bats since then.
Betsy Helfand is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.