What happened: Frank Gansz Jr., a veteran football coach whose career spanned more than four decades across the professional and collegiate ranks, has died at age 64. He most recently served as the special teams coordinator for the UFL's St. Louis Battlehawks.

Why it matters: The son of former NFL head coach Frank Gansz Sr., he carved out his own legacy as a highly regarded special teams mind. His NFL tenures included coordinator roles with the Oakland Raiders, Baltimore Ravens, and the Kansas City Chiefs, where he famously helped Dante Hall become an elite return specialist.

What to watch: The St. Louis Battlehawks and the wider football coaching fraternity are expected to honor his memory in the coming days.