The Eagles signed Gray to the practice squad Tuesday.
Gray was held out of Wednesday's practice due to an undisclosed injury, Nick Wagoner of ESPN.com reports.
Gray (shoulder) was spotted working out during the 49ers' OTAs earlier this week.
Gray (shoulder) has been ruled out ahead of Sunday's game against the Rams.
Gray (shoulder) has been downgraded to out ahead of Sunday's game against the Commanders.
Gray (shoulder) is starting the season on injured reserve and will miss a minimum of four games, Eric Branch of the San Francisco Chronicle reports.
Gray has a sprained joint in his right shoulder, Josh Dubow of The Associated Press reports.
Gray finished his rookie campaign with one reception (seven targets) for 10 yards and one rush for nine yards.
Gray (hamstring) practiced fully Tuesday, Nick Wagoner of ESPN.com reports.
Coach Kyle Shanahan said Gray (hamstring) is considered day-to-day, Nick Wagoner of ESPN.com reports.