The Pirates reinstated Gregory Polanco from the 10-day disabled list Thursday, though Polanco was not in the lineup for Pittsburgh's series finale against Atlanta.
The club optioned outfielder Danny Ortiz to Triple-A Indianapolis in a corresponding move.
Polanco missed nine games with a left hamstring strain that compounded a sluggish start to his third full season. The 25-year-old is hitting .252/.336/.370 with one home run, nine RBIs and six stolen bases in 34 games.