Ferrell and the Commanders agreed on a contract Monday.

The 49ers placed Ferrell (knee) on injured reserve Saturday, Jennifer Lee Chan of NBC Sports Bay Area reports.

Ferrell (knee) has been ruled out for the rest of Sunday's game against the Rams, Nick Wagoner of ESPN.com reports.

The 49ers agreed to terms with Ferrell on a one-year contract Wednesday, ESPN's Adam Schefter reports.

The Raiders declined Ferrell's fifth-year option for 2023 on Friday, Paul Gutierrez of ESPN.com reports.

Ferrell was projected to have returned to a full practice Wednesday, Paul Gutierrez of ESPN.com reports.

Ferrell was sidelined for Monday's contest with a back injury, but he is likely to return for the Raiders' Week 2 matchup against the Steelers, Vic Tafur of The Athletic reports.

Ferrell (undisclosed) was listed as a full participant in Thursday's practice.

Ferrell (undisclosed) is day-to-day and might play in Sunday's preseason finale against the 49ers, Paul Gutierrez of ESPN.com reports.

The Raiders placed Ferrell (shoulder) on injured reserve Wednesday, Paul Gutierrez of ESPN.com reports.