What happened: Chris Johnson's health situation has grown more difficult, with the former NFL running back now unable to speak as ALS progresses. Johnson communicates by using his eyes to select words on a specialized device.

Why it matters: Johnson revealed his ALS diagnosis in late June, and the NFL community has rallied around him in the days since. His update puts a human face on a disease that has touched the football world repeatedly, and it keeps attention on ALS research and support efforts.

What to watch: Watch for further updates from Johnson and his family on his condition, along with continued tributes and support initiatives from around the league.