Miami Dolphins quarterback Tua Tagovailoa has been diagnosed with a concussion after exiting the game against the Buffalo Bills. This injury raises concerns given his history with concussions. Additionally, Tagovailoa recently signed a record-breaking contract extension with the Dolphins, making him one of the highest-paid quarterbacks in the league.

• Tua Tagovailoa's concussion raises uncertainty about his availability for the upcoming game against Seattle.
• Tagovailoa's recent contract extension highlights his importance to the Dolphins franchise.