The Pirates recalled Ortiz from Triple-A Indianapolis on Tuesday, Jason Mackey of the Pittsburgh Post-Gazette reports.
Ortiz will start for Pittsburgh against the visiting Rockies and might get an extended run in the rotation if things go well. The 24-year-old had registered a promising 2.23 ERA, 0.96 WHIP and 29:11 K:BB through 32.1 innings (seven starts) this season at the Triple-A level.