"Zack just wanted to get on the rubber, feel the rubber, get online and feel some balance points," D-backs manager Torey Lovullo said.
Lovullo said Monday the team was planning on "slow-playing" Greinke this spring. In other words, with the extra week that's been added to camp because of the World Baseball Classic, there is no reason for Greinke to hurry up and get ready.
Lovullo reiterated it again Tuesday -- that there are no health-related issues with Greinke, who was shut down a week early last season due to some shoulder stiffness.
Steve Gilbert has covered the D-backs for MLB.com since 2001. Follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.