In a surprising move the Pirates activated closer Jason Grilli from the disabled list Tuesday.

Grilli originally was scheduled to make a rehab appearance for Triple-A Indianapolis on Wednesday. Grilli threw a scoreless inning for Double-A Altoona on Monday.

Pirates manager Clint Hurdle declined to say whether Grilli would immediately resume closer duties upon his return when asked Monday.

Grilli was sidelined for several weeks due to a forearm injury.