CHICAGO -- Randall Delgado was recalled from Triple-A Reno to take injured right-hander Brandon McCarthy's place on the D-backs' roster, but who will take McCarthy's spot in the rotation remains to be seen.
D-backs manager Kirk Gibson did not commit to Delgado starting in McCarthy's place on Tuesday, and there are indications that the club could recall left-hander Tyler Skaggs to make that start.
"He'll be an option," Gibson said of Skaggs. "We'll get through these next couple of days. We may keep Delgado. It just depends on what goes on."
By bringing up Delgado now, the D-backs give themselves an extra arm in the bullpen through Monday. The club could then recall Skaggs to start Tuesday.
Skaggs was impressive last Monday when he started against the Rangers at Chase Field. Skaggs, ranked as the team's No. 1 prospect by MLB.com, tossed six shutout innings and allowed just three hits.
Delgado, who was acquired during the offseason trade that sent Justin Upton to Atlanta, got off to a rough start in Reno, but has pitched better of late.