ALLEN PARK -- Safety Louis Delmas practiced for the third straight day, yet still on a limited basis. Delmas participated in seven-on-seven drills, but was not on the field for team drills.

“It’s just part of his progression to getting back, he’s been outstanding,’’ coach Jim Schwartz said.

Thursday is the final day of practice before the preseason opener at Pittsburgh on Saturday night. Even though Delmas is unlikely to play in the game he might get on the field more during one of Thursday’s training camp sessions.

“We got some stuff getting ready for Pittsburgh tomorrow that might be a good chance to get him some reps. The tempo is different (because) it’s shorts, no shoulder pads. We’re sort of on a day-to-day basis of how he’s doing,’’ Schwartz said. “He’s been really, really good. He’s back in shape, he had a really good week of work last week. He’s real close. He’s close to being able to come back and do everything.’’

Delmas injured his groin in the late June minicamp and has not been at 100 percent since.

(Follow me on Twitter @paulapasche.)