As he does, Miami is handing the keys over to backup Skylar Thompson. In the wake of Tagovailoa's head injury, head coach Mike McDaniel described Thompson as the "next man up."

Skylar Thompson explains why he's better prepared to take charge of the Miami Dolphins (in place of Tua Tagovailoa) than when he was a rookie.

Having spent the past two seasons as his teammate, Seattle center Connor Williams struggled to watch what happened to Miami’s Tua Tagovailoa. He’d much rather see Tagovailoa on the field Sunday when the Seahawks host the Dolphins than watch his former teammate deal with yet another concussion.