ALLEN PARK -- Safety Louis Delmas who practiced Monday afternoon and Tuesday morning was not on the field Wednesday morning.

Delmas, who is returning from a groin injury, was pleased to get in back-to-back practices. He seemed confident on Tuesday that he will play in Saturday’s preseason game. It could be that he is sitting out as a precaution and will practice Thursday in preparation for the preseason game against Cleveland.

Wide receiver Calvin Johnson was back on the practice field Wednesday morning after sitting out both practices on Tuesday. Johnson said he was fine on Tuesday, but was icing his right ankle.

Backup quarterback Shaun Hill, who didn’t participate in Tuesday afternoon’s session was back.

Defensive end Jared DeVries, who practiced Monday, has been absent since then. He is dealing with a knee injury.

Others missing on Wednesday morning were TE Dan Gronkowski, CB Paul Pratt, CB Aaron Berry, DE Lawrence Jackson, S David Roach, G Trevor Canfield, K Jason Hanson and CB Jack Williams who is still on the physically unable to perform list.

(Follow me on Twitter @paulapasche.)