PITTSBURGH (AP) The Arizona Diamondbacks activated right-handed reliever Randall Delgado off the disabled list prior to Monday night's game against the Pittsburgh Pirates and optioned infielder-outfielder Jamie Romak to Triple-A Reno.

Delgado, who had been out since July 28 with a sprained right ankle, made one one-inning appearance each in the rookie-level Arizona League and with Double-A Mobile.

Delgado was scheduled to pitch two innings on Tuesday for Mobile, but Arizona manager Chip Hale said the Diamondbacks decided to activate him sooner. They wanted an extra pitcher for a stretch in which they play 21 games in 20 days before their next off day Sept. 3.

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Delgado is 4-3 with one save and a 2.79 ERA in 41 relief appearances.

Romak played in six games and went 3-for-10 (.300) with an RBI.