J.T. Barrett is back to practice, but he will be sidelined for the next week with a torn ACL.
The Houston Texans linebacker said he expects to be ready to go for the season opener against the Minnesota Vikings.
J.B. Daniels was injured in the preseason opener.
Daniels is recovering from a left knee injury.
Janssen will start at left defensive end against the Detroit Lions.
Jags RB Leonard Fournette is not practicing with a hamstring injury, but coach Doug Marrone said he was “100 percent.”
“I feel great,” Fournettes told reporters.
“I’m very confident.”
Marrone didn’t reveal what he said was the ailment.
He said Fournies hamstring was sore after practice, which prompted the Jaguars to send him to the practice field.
He was listed as questionable.
The Jaguars have two healthy starting linebackers in B.J., and they could add another in the next few weeks.