Angel Pagan, who had surgery to repair a torn tendon in his left hamstring in June, began his rehab assignment with the Giants' rookie league team on Friday.
The 32-year old went 0-for-1 with a fly out and a walk. Reports indicate that he is scheduled to play five innings on Saturday, and that he is on track to be activated when rosters expand on Sept. 1.
Pagan was awarded a four-year, $40 million contract after he hit .288 with a league-leading 15 triples in helping the Giants to their second World Series title in three years last season.
Pagan was hitting .262 with three home runs in 46 games before he was injured this year.