Herrera was designated for assignment by the Orioles on Tuesday.
Herrera spent a week with the major-league club and went 0-for-5 with four strikeouts during that time. He reached base just once after he was hit by a pitch. The 26-year-old will now be cast off the 40-man roster, and it's unclear whether he'll find a spot with another organization given his lackluster results in the big leagues.