Ryan Tannehill left Sunday’s Dolphins-Cardinals game after taking a low hit to his left knee.
The Dolphins fear he torn his ACL, which would not only end his season but potential put his availability for Week 1 of the 2017 season in jeopardy.
“I don’t have it officially yet, but it doesn’t look good,” said Dolphins coach Adam Gase. “We’ll get it confirmed tomorrow.”
Tannehill’s injury came with just over a minute left in the third quarter.
Tannehill was hurt while throwing an 11-yard completion to DeVante Parker. After Tannehill released the ball, Cardinals defensive tackle Calais Campbell hit him low, knocking him from the game. Dolphins players said after the game they believed the hit was illegal and were upset at the officials for not throwing the penalty flag.
After staying down for some time, Tannehill walked off the field under his own power and then went to the locker room, saluting the crowd before disappearing into the tunnel. He watched the final minutes in street clothes on the sideline, and was clearly emotional.
Matt Moore finished the game in Tannehill’s place. Tannehill has never missed a start in his career, a streak that reached 77 games Sunday. He was 15 of 20 for 195 yards and three touchdowns before his injury.