Estrada (wrist) went 1-for-3 with an RBI and a hit-by-pitch in his first rehab game with Triple-A Sacramento on Tuesday.
Estrada has been shelved for nearly three weeks with a sprained left wrist but is almost ready to rejoin the Giants' active roster. Because he hasn't missed much time, Estrada would appear likely to be activated for the weekend series in Oakland which begins Saturday. Once he's back, Estrada should see the bulk of the reps at second base for San Francisco.