Rodriguez will likely begin the season with Triple-A Indianapolis because the Pirates want him to get everyday at-bats, Alex Stumpf of MLB.com reports.
Johnson was removed from the Pirates' Spring Breakout game roster due to a bone bruise in his left foot, Noah Hiles of the Pittsburgh Post-Gazette reports.
Stephenson will open the season on the 10-day injured list after being diagnosed with a low-grade oblique strain, Gordon Wittenmyer of The Cincinnati Enquirer reports.
Trevino was removed from Friday's Cactus League game against Arizona with an apparent hand injury, Gordon Wittenmyer of The Cincinnati Enquirer reports.