CINCINNATI >> Miami Dolphins quarterback Tua Tagovailoa sustained neck and head injuries after being slammed to the ground Thursday night against the Cincinnati Bengals and was stretchered from the field.

The Dolphins said Tagovailoa was conscious, had movement in all his extremities and was taken to the University of Cincinnati Medical Center for further evaluation. The Dolphins said after their 27-15 loss to the Bengals that Tagovailoa was expected to be released from the hospital and fly home with the team.

Tagovailoa, a Saint Louis alum, was chased down and sacked by 6-foot-3, 340-pound Josh Tupou with about six minutes left in the first half. He was spun around and thrown to the turf. While on the ground, his hands froze in front of his face. He remained down for more than seven minutes before being loaded on a backboard, stabilized and strapped to a stretcher after his facemask was removed.

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Dolphins players gathered around as Tagovailoa was rolled off the field and the crowd chanted “Tua! Tua!”

Reaction came swiftly from around the NFL. Chiefs quarterback Patrick Mahomes and Broncos QB Russell Wilson promptly tweeted with concern for Tagovailoa’s well-being.

“Praying for you Tua,” Wilson wrote.

The 24-year-old Tagovailoa was suffering from a sore back and was listed as questionable for most of the week ahead of the game.

Tagovailoa briefly left Sunday’s 21-19 victory over the Buffalo Bills after appearing to be disoriented by what the team originally said was a head injury after taking a hard hit from Bills linebacker Matt Milano late in the first half. He missed just three snaps and returned after halftime, a decision that prompted a joint review by the NFL and National Football League Players Association of what went into the decision to allow him to return to the game.

The team and Tagovailoa said after the game the quarterback had a back injury that caused his awkward stumble and fall after he was slammed into the turf in the second quarter. The team said Monday that Tagovailoa was not in concussion protocol.

He said he “hyper-extended” his back after getting his legs caught under someone on a quarterback sneak.

After Tagovailoa’s injury today, the NFLPA tweeted: “Player health and safety is at the core of the union’s mission. Our concern tonight is for Tua and we hope for a full and speedy recovery. Our investigation into the potential protocol violation is ongoing.”

Some criticized the decision to play Tagovailoa so soon after his injuries in Sunday’s game.

Hall of Famer Shannon Sharpe tweeted: “That’s a serious injury. Tua shouldn’t have been out there with Sunday Thursday turn around. Sometimes players need protecting from themselves. Dolphins failed Tua.”

Before leaving Thursday’s game, Tagovailoa was 8 for 14 for 100 yards and an interception. He was replaced in the game by Teddy Bridgewater, who threw a touchdown pass to Chase Edmonds with 15 seconds left in the half.

The play of Tagovailoa, who won a national championship at Alabama, has been key for the 3-0 Dolphins. He came into the game second in the NFL with 925 passing yards.