The Miami Dolphins will be without quarterback Tua Tagovailoa for at least the next four games after he was placed on IR. Tagovailoa suffered another concussion, which was the third known one in his NFL career. There have been concerns regarding his future ...

With the Miami Dolphins placing Tua Tagovailoa on IR, we analyze how NFL teams performed last season with backup QBs. Was there a big drop-off?

Tagovailoa isn’t the only Dolphin dealing with an injury. Running back Raheem Mostert did not play against Buffalo last week due to a chest injury. He is not expected to play against Seattle. Offensive lineman Terron Armstead will return to the field Sunday after missing the season’s first two games with a torn rotator cuff.