Anderson is scheduled to pitch in the Rockies' Cactus League opener Wednesday, the Denver Post reports.
The 26-year-old lefty hasn't pitched since winning Pitcher of the Year honors in the Texas League in 2014 (1.98 ERA, 1.11 WHIP), which could put him on the outside looking in at a rotation spot to begin the season, but the Rockies have few sure things in their starting five, leaving the door open for an early Anderson promotion if he doesn't claim a spot with a strong showing in camp.