Small (oblique) shifted his rehab assignment to Single-A San Jose on Saturday and struck out two while allowing one hit and no walks over one inning.
The Giants sent Small (oblique) to their Arizona Complex League affiliate Tuesday to begin a rehab assignment.
Small (oblique) threw a 20-pitch live batting practice session Friday, MLB.com reports.
Small (oblique) is slated to throw out to 120 feet this week, MLB.com reports.
The Giants placed Small (oblique) on the 60-day injured list Thursday.
Small will be sidelined for several weeks after being diagnosed with a moderate right oblique strain, Maria I. Guardado of MLB.com reports.
Small has allowed one run on five hits and a walk with six strikeouts over 3.2 innings across two Cactus League games.
The Brewers optioned Small to Triple-A Nashville on Friday.
Small was recalled from Triple-A Nashville on Wednesday.
Small was optioned Triple-A Nashville on Saturday.