Yacabonis was called up from Triple-A Norfolk prior to Saturday's game against the Yankees, Jon Meoli of The Baltimore Sun reports.
In a corresponding move, the Orioles placed Colby Rasmus on the 10-day disabled list with a left hip injury. Yacabonis appeared in 14 big-league games last season, posting a 4.35 ERA and 1.55 WHIP with an 8:14 K:BB. Expect him to pitch only in low-leverage situations.