San Francisco 49ers Player News: Last 24 hours, All Positions

News: Mabin (calf) is inactive for Sunday's game against the Titans.
Impact: Mabin was added to the 49ers' injury report Thursday with the calf issue, which limited him during the team's final two practices of the week. Given Mabin's poor health and standing as a depth player in the secondary, the 49ers elected to hold him out, allowing K'Waun Williams and Leon Hall to dress as the backups to starting cornerbacks Ahkello Witherspoon and Dontae Johnson.
News: Witherspoon (knee) is active for Sunday's game against the Titans.
Impact: A limited practice participant throughout the week while battling an MCL sprain, Witherspoon was cleared to play after making it throughout pregame warmups without issue. Though he should see ample snaps Sunday, Witherspoon isn't really on the IDP radar after producing just one interception in nine games and no more than four tackles in any of those contests.
News: Powell was promoted to the 49ers' 53-man roster Saturday.
Impact: Powell has been on the team's practice squad after reaching an injury settlement with the Colts in September. The 23-year-old should be a reserve option in the 49ers' secondary, but could potentially see some opportunities given the plethora of injuries the unit has sustained this season.