JACKSONVILLE – A lot of rehearsal, a touch of red zone.

That was the agenda for the Jaguars Tuesday, a day that featured not only a slew of players remaining out of practice but extensive preparations for Friday's third game of the 2015 preseason.

Preseason Week 3 is typically dress rehearsal week for NFL teams.

And Jaguars Head Coach Gus Bradley, while dealing with injury updates and also discussing the return of defensive tackle Sen'Derrick Marks, on Tuesday said that absolutely is this week's theme.

"We had good work today," Bradley said Tuesday after a two-hour practice at the Florida Blue Health and Wellness practice fields.

The Jaguars will play host to Detroit at EverBank Field Friday at 8 p.m., and Bradley said a primary focus this week has been meeting and game-planning for the Lions. Teams typically do far less game-planning for Preseason Weeks 1, 2 and 4. The Jaguars also worked red-zone extensively on Wednesday.

"Dress rehearsal is probably a good term for it as far getting our routine set up for the week," Bradley said.

Bradley said, too, that the week's schedule is far more like a regular-season schedule compared to the training-camp schedule of recent weeks.

"There are no longer any night walkthroughs – they're all early in the morning," Bradley said. "So getting that part of the routine is the majority of the emphasis."

Bradley also said the first-team offense and defense likely will play at least a half Friday, with the idea being to give them the feel of a regular-season game in terms of pregame preparation and halftime routine/adjustments.

"To be able to come out of the locker room and play another portion of the game is important," Bradley said.

As for Marks, Bradley said a recent test result this week indicated the veteran defensive tackle's return from reconstructive knee surgery remains on schedule. Bradley said Marks now should increase running and on-field work with Strength and Conditioning Coach Tom Myslinksi.

"We'll see how he responds to that," Bradley said. "I know he's got some work to do, but it's a good sign he passed that test. … He's doing good."

Marks said the recent passed test involved quad and hamstring strength.

"I feel good," he said. "That gives me clearance to start doing other things. I just have to keep pressing. That's all I can do right now."

Marks since sustaining a torn anterior cruciate ligament in last year's regular-season finale has targeted the September 13 regular-season opener as his return date. He said Tuesday that remains his goal.

"I don't know what they think about it, but that will keep me pressing the way I have been," he said.

Several other players remained out of practice Tuesday:

Wide receiver Marqise Lee (hamstring), wide receiver Greg Jenkins (high-ankle sprain), cornerback Demetrius McCray (knee), running back Toby Gerhart (abdominal strain), cornerback Peyton Thompson (hamstring), linebacker LaRoy Reynolds (knee) and linebacker Khairi Fortt (knee).

Safety Johnathan Cyprien (finger) and tight end Julius Thomas (hand) continued to work in red, non-contact jerseys. They are not expected to play in the final two preseason games.

Josh Wells, a reserve offensive tackle, returned to practice with a helmet after seeing a hand specialist Monday. He sustained a dislocated left thumb against the New York Giants Saturday. He practiced on a limited basis Tuesday, as did wide receiver Neal Sterling (hamstring).

Also, wide receiver Arrelious Benn underwent successful surgery on a broken collarbone Tuesday. The Jaguars placed Benn on injured reserve Monday after he sustained the injury against the Giants Saturday.