Tua Tagovailoa's Brain Injury Reignites NFL Concussion Safety Debate

Miami Dophins quarterback Tua Tagovailoa's injury has relit a spotlight on how the NFL handles brain safety and concussions.

The Miami Dolphins and the NFL are under intense scrutiny after a frightening head injury to star quarterback Tua Tagovailoa.

Tagovailoa was tackled in the backfield. When he spun around, the back of his head hit the turf. As he turned over after the hit, his fingers seemed splayed in an awkward position.

"That's how brain injuries occur, how concussions occur," Dr. Julian Bailes said. "They're stretching, tearing of fibers, and so forth."