Gonzales (groin) will begin a rehab assignment with Triple-A Indianapolis on Tuesday, Danny Demilio of PittsburghBaseballNow.com reports.
Gonzales was placed on the 10-day IL on July 28 and has been deemed ready to appear in games. The 25-year-old will likely require multiple games with Indianapolis before being cleared to rejoin the active roster. Once activated, Gonzales will likely compete with Isiah Kiner-Falefa for work at second base.