Dolphins quarterback Ryan Tannehill injured his left leg on Miami's second series against the New York Jets and left the game. His return to the game is questionable.
After being sacked on third down by the Jets' Calvin Pace, Tannehill came up, but was unable to put any pressure on his left leg. He limped to the Dolphins' sideline and collapsed.
Dolphins trainers were working on Tannehill's left leg and stretching his quad muscle. The rookie quarterback then rode the stationary bicycle for a short time.
Miami backup Matt Moore came into the game on the Dolphins' next series and has stayed in the game.
Tannehill, the eighth-overall pick in the 2012 NFL draft out of Texas A&M, has impressed Dolphins fans and pundits so far this season by passing for over 1,400 yards and leading the Dolphins to a 3-3 record.
The Dolphins and Jets are scoreless after the first quarter in New York.