Miami Dolphins quarterback Tua Tagovailoa suffered a concussion in the team's Week 2 loss to the Buffalo Bills. We explain what "fencing response" is and what it means for Tagovailoa's concussion.

Medical experts are worried after Dolphins star quarterback Tua Tagovailoa displayed the fencing position after suffering a concussion during the 31-10 loss to the Bills on "Thursday Night Football." ...

This position — forearms extended or flexed, usually in the air — follows the impact and is known as the fencing response position. It lasts up to several seconds after the collision.

This is when newborn babies position themselves with one arm flexed and the other extended with their head turned toward the extended arm like a trained fencing athlete. This reflex usually stops ...

Miami Dolphins quarterback Tua Tagovailoa suffered a concussion in the team's Week 2 loss to the Buffalo Bills. We explain what "fencing response" is and what it means for Tagovailoa's concussion.