Davis is out of the lineup for Friday's series opener against the Royals.
Trey Mancini will take over at first base in place of Davis with the Orioles facing hard-throwing lefty Danny Duffy. Davis has been competent against left-handed pitching to start the year, hitting .267 over 42 at-bats, but Mancini has had more power success against southpaws with two home runs and six RBI. Look for Davis to rejoin the lineup Saturday when the Orioles face right-hander Nathan Karns.