If LSU’s first scrimmage was an early look at where it stands offensively, the second go-around Thursday might be a chance for old faces to settle back into familiar roles.

On Saturday, senior running back Alfred Blue sat out as he practices in the wake of from a torn anterior cruciate ligament in his left knee, and junior defensive end Jordan Allen makes his second scrimmage appearance returning from the same injury.

LSU coach Les Miles said recently Blue, who was injured in the third week of last season against Idaho, could see some reps but still don a green jersey indicating no contact is allowed. The move could allow Blue, who has participated in drills, to run in a live setting without worry of a setback.

The workout could also provide further clarity when it comes to the rotation at middle linebacker, where in individual drills this week junior D.J. Welter and redshirt senior Lamin Barrow are still swapping places between the outside and middle linebacker spots.

On the line, Elliot Porter is working back full-time at center, and junior La’El Collins appeared more comfortable working out at the left tackle spot.

But Allen’s return at defensive end still looms as a potential question on a line that seems to anchored in the middle by junior tackles Ego Ferguson, a 6-3, 308-pound, and Anthony Johnson, 6-3, 303 pounds.

“I feel like it’s my time to step up and make plays at that spot,” Allen said Monday.

In its first scrimmage, LSU’s quarterbacks put the ball in the air 58 times, led by senior Zach Mettenberger’s 200 yards and two touchdowns on 20-of-30 passing.

Plus, freshman Anthony Jennings, a 6-3, 205-pounder from Marietta, Ga., showed snippets of offering LSU a dual-threat option in passing for 54 yards and on 5 of 11 attempts and running for 25 yards on five carries.

The scrimmage is the last workout before LSU lets out for spring break and resumes workouts April 9.

The spring game is April 20 at Tiger Stadium.