NFL's concussion protocol modified after Tagovailoa review

Miami Dolphins quarterback Tua Tagovailoa is taken off the field on a stretcher during the first half of an NFL football game against the Cincinnati Bengals, Thursday, Sept. 29, 2022, in Cincinnati. (AP Photo/Jeff Dean)

Miami Dolphins quarterback Tua Tagovailoa is examined during the first half of the team's NFL football game against the Cincinnati Bengals, Thursday, Sept. 29, 2022, in Cincinnati. (AP Photo/Jeff Dean)

Miami Dolphins quarterback Tua Tagovailoa (1) is sacked by Cincinnati Bengals' Josh Tupou (68) during the first half of an NFL football game, Thursday, Sept. 29, 2022, in Cincinnati. (AP Photo/Joshua A. Bickel)

Miami Dolphins quarterback Tua Tagovailoa is taken off the field on a stretcher during the first half of an NFL football game against the Cincinnati Bengals, Thursday, Sept. 29, 2022, in Cincinnati. (AP Photo/Jeff Dean)