What happened: The San Francisco 49ers announced the death of former linebacker Todd Shell. The organization extended its condolences to his wife, Kelli, and the Shell family.

Why it matters: Shell was a key contributor on the defense during San Francisco's title-winning era, earning a championship ring in Super Bowl XIX. He previously starred as a linebacker at BYU before joining the 49ers.

What to watch: The 49ers are expected to honor Shell's memory during upcoming team activities.