Allen was present for Wednesday's practice but was a non-participant due to a hip injury, Ryan O'Halloran of The Florida Times-Union reports.
Per Michael DiRocco of ESPN.com, Allen wasn't wearing pads during the portion of the session that was open to the media, so he appears to have been limited to rehab work during the Jaguars' first official practice of the regular season. Earlier Wednesday, head coach Liam Coen suggested that Allen was trending toward a game-time decision for Sunday's season opener versus the Browns. The 22-year-old running back will likely need to upgrade to full practice participation by Friday to have a realistic shot at playing this weekend.