San Francisco placed Robinson (knee) on injured reserve Saturday, Nick Wagoner of ESPN.com reports.
Robinson left Thursday's practice session due to a knee injury, Cam Inman of The San Jose Mercury News reports.
The 49ers activated Robinson (ankle) from injured reserve Saturday, Josh Dubow of The Associated Press reports.
The 49ers announced Wednesday that Robinson (ankle) has been designated to return, Aaron Wilson of ProFootballNetwork.com reports.
The 49ers placed Robinson (ankle) on injured reserve Wednesday.
Robinson suffered a high ankle sprain during Thursday's preseason contest against the Texans, David Lombardi of The Athletic reports.
Robinson (ankle) will not return to Thursday's preseason finale against the Texans, Eric Branch of the San Francisco Chronicle reports.
Robinson (groin) is expected to miss the 49ers' practices this week while dealing with a groin injury, Matt Maiocco of NBC Sports Bay Area reports.
Robinson (thumb) was signed to the Broncos' practice squad Friday, Aaron Wilson of Sportstalk 790 Houston reports.
Robinson was waived by the Broncos on Tuesday, Aric DiLalla of the Broncos' official site reports.