Jaguars starting linebacker Leon Jacobs was injured on the seventh play. He was carted off with a right knee injury.
The Jaguars have ruled him out.
Myles Gaskin gained 7 yards on the play and finished the first drive with eight carries 35 yards as the Dolphins rolled right down the field after taking the opening kickoff.
The Dolphins’ drive went 84 yards and chewed up 6:51 of the first quarter.