Williams initially was not placed on the IR, with hope that he'd return this season. However, the injury has not improved in condition, and Williams' season has officially been ended. Kyle Shanahan was asked about the potential of the injury being a long-term or perhaps career-ending issue for Williams.

The 49ers (6-9) placed left tackle Trent Williams on injured reserve Thrusday, the result of an ankle injury that will have sidelined him their final seven games this season.