The Giants recalled Warren from Triple-A Sacramento on Friday, Shayna Rubin of the San Francisco Chronicle reports.

The Giants optioned Warren to Triple-A Sacramento on Saturday, Alex Pavlovic of NBC Sports Bay Area reports.

The Giants recalled Warren from Triple-A Sacramento on Friday.

The Giants optioned Warren to Triple-A Sacramento on Saturday.

Warren was recalled from Triple-A Sacramento on Tuesday, Amy Gutierrez of the Giants' official site.

The Giants reinstated Warren (elbow) from the 60-day injured list Saturday and optioned him to Triple-A Sacramento, Shayna Rubin of the San Francisco Chronicle reports.

Warren (elbow) is scheduled to make a one-inning rehab appearance for Triple-A Sacramento on Tuesday, MLB.com reports.

Warren (elbow) threw a scoreless inning Wednesday in his first rehab appearance with the Arizona Complex League Giants.

Warren (elbow) will throw a 30-pitch bullpen session Friday, Maria I. Guardado of MLB.com reports.

Warren (elbow) was placed on the 60-day injured list Sunday, Maria I. Guardado of MLB.com reports.