Right-handed reliever Yohan Ramirez was optioned to Triple-A Indianapolis on Thursday by the Pittsburgh Pirates.
The move came as the Pirates officially designated right-handed reliever Wil Crowe for assignment to open a 40-man roster spot. Crowe had been on the injured list since April 18 with right shoulder discomfort.
Ramirez has gone 1-0 with a 4.25 ERA in 23 relief appearances with the Pirates this season.
The Pirates were off Thursday. They visit the Los Angeles Angels on Friday night in Anaheim to begin a three-game series and six-game homestand.