Catch up on all the San Francisco 49ers news heading into Monday's matchup with the Detroit Lions at Levi's Stadium.

Veteran center Matt Hennessy just signed a two-year deal with the 49ers. To make room for Hennessy on the 53-man roster, they placed Trent Williams on

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.