Miami Dolphins quarterback Tua Tagovailoa signed a four-year contract extension. Here's what to know about him, including how to pronounce his name.

None of this matters if Tua is cleared to play. If he’s not cleared, however, the Dolphins will owe every penny of the guaranteed money — possibly if not probably with no insurance money to refund the cash or to secure salary-cap credits.

QB Tua Tagovailoa won't play against the Seahawks on Sunday, but they are still wary of the Dolphins' offense led by mobile backup Skylar Thompson.