"He's going to probably do it again Monday or Tuesday against [injured closer closer] J.J. [Putz]," D-backs manager Kirk Gibson said.
Eaton has been on the disabled list since June 1 with a strained left elbow. He initially felt some discomfort in March and was shut down before being activated and began feeling more pain.
Jamal Collier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.