Trout (calf) participated in on-field activities prior to Tuesday's game in Detroit, Jack Harris of the Los Angeles Times reports.

EDGE Analysis

It marked the star outfielder's first participation in on-field workouts since he felt discomfort in his injured calf while running in late July. Manager Joe Maddon said the club will have to see how he responds in the next few days to Tuesday's workout before determining his next steps. Considering that Trout still lacks a concrete return timeline, it seems near certain that he'll remain on the injured list through August, and possibly well into September.