Brown (undisclosed) took part in stretching prior to Tuesday's practice, Turron Davenport of ESPN.com reports.
Brown departed Friday's session early, sitting out Sunday and Monday as a result. The nature of the injury remains unknown, but the second-year receiver at least is taking the first step to getting back on the field. Once healthy, Brown will serve as the No. 1 WR in the Titans' expected run-heavy scheme.