ALLEN PARK -- Safety Louis Delmas is unlikely to play in the preseason opener on Saturday at Pittsburgh, coach Jim Schwartz said on Thursday following the first of two sessions.

"The way it looks now, Louis is not going to play in that game,'' Schwartz said.

Delmas, who participated in practices Monday through Wednesday, did not on Thursday morning. Delmas is coming off a groin injury. Schwartz said there has been no setback.

“He’s right on track for what we want, give him a little more, ease him back, give him a little more after that, ease him back. It’s not gong to be he’s going to go and, all of a sudden, go at full speed and full pads and everything else,’’ Schwartz said. “We’re trying to stay with our program and trying to not let how him feeling good to convince us he needs to go. He’s right on schedule.’’

Schwartz was uncertain if Delmas would practice in the Thursday afternoon session because they were zeroing in on the Steelers and he didn’t want to take reps away from a guy who will play.

(Follow me on Twitter @paulapasche.)