They have a walk-through Friday and then fly to New England.
Neither Henderson nor Jackson practiced Wednesday.
Henderson suffered the hamstring injury on the first series in Pittsburgh so Jackson got a lot of time backing him up.
They would have been thin without them because Rob Meier, starting for Marcus Stroud, and rookie Derek Landri, who had a sack, interception and fumble recovery in Pittsburgh, are the only other two defensive tackles on the roster.
The Jaguars like to rotate their defensive tackles so they'll have more depth with Henderson and Jackson back in uniform.
The Jaguars had six sacks by their defensive linemen against Ben Roethlisberger last week but that'll be much more difficult to do against Tom Brady.
And when the Jaguars blitzed Roethlisberger, they tended to give up big plays.
They need an excellent game by their defensive line so they can drop seven into coverage. They're likely to start nickel back Terry Cousin in an attempt to contain Brady's passing.
The only other setback on the injury front is that wide receiver Reggie Williams didn't practice because of a back injury, but the Jaguars hope he'll be ready to play.
Williams caught only one pass for three yards in Pittsburgh, but it went for a touchdown. He had 10 touchdown catches during the regular season.
The only other player on the injury report besides Williams, Henderson and Jackson is middle linebacker Mike Peterson, who's out with a broken hand.
Defensive Line Healed?
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