Sep 10: San Francisco placed Collins (knee) on injured reserve Thursday.

Sep 21: Head coach Kyle Shanahan said Sunday that he's not viewing Aiyuk as an option for the 49ers while the club contends with multiple injuries at receiver, Matt Barrows of The Athletic reports.

Aug 31: The 49ers placed Toth (concussion) on injured reserve Sunday.

Oct 2: Head coach Kyle Shanahan said Friday that the 49ers could open Kirk's (calf) practice window to return from injured reserve in two weeks, Matt Barrows of The Athletic reports.

Sep 23: The 49ers placed West (undisclosed) on injured reserve Wednesday.

Sep 26: The 49ers placed Robinson (ankle) on injured reserve Saturday.

Sep 19: The 49ers placed Stribling (ankle) on injured reserve Saturday.

Aug 30: Guerendo (pectoral) was placed on the reserve/PUP list Sunday, Jeremy Fowler of ESPN reports.

Sep 16: Tonges (knee) requires surgery for an MCL tear and is done for the season, Cam Inman reports.

Oct 4: James (coach's decision) is inactive against Denver on Sunday.

Oct 5: Juszczyk is believed to have sustained a sprained right knee in Sunday's 24-14 win over the Broncos and is likely to miss "several weeks," Ian Rapoport of NFL Network reports.

Oct 4: Sigle suffered an ankle injury during Sunday's 24-14 win over the Broncos.

Sep 30: The 49ers opened Williams' (knee) 21-day practice window Wednesday to return from the reserve/PUP list, Matt Maiocco of NBC Sports Bay Area reports.

Sep 1: The 49ers placed Martin (hamstring) on injured reserve Tuesday, Aaron Wilson of KPRC 2 Houston reports.

Aug 31: Zakelj (undisclosed) was placed on the 49ers' injured reserve Sunday.

Aug 13: Pearsall announced Thursday in a post on his personal Instagram account that he underwent season-ending surgery to repair the PCL in his right knee, David Lombardi of SFStandard.com reports.

Sep 7: Okuayinonu broke his foot in practice last week and is set to have surgery to repair the issue, Matt Barrows of The Athletic reports.