METAIRIE, La. -- Sean Payton didn't offer updates on any of the various injuries that piled up for the New Orleans Saints during Sunday's 24-23 loss to the Detroit Lions.

But cornerback Keenan Lewis insisted, "I'll be ready," without getting into any of the specifics of what knocked him out of the game late in the fourth quarter. Payton said after the game it was hamstring and cramping issues.

The Saints certainly hope Lewis will be back this week, since they'll need their top corner more than ever Sunday night against the Green Bay Packers and their dynamic passing offense.

The nature of running back Pierre Thomas' injury remains unknown. He appeared to be in pain as he punched the ground and lay there for a couple minutes as trainers tended to him in the third quarter after a hard hit to his left arm/shoulder area. But Thomas got up soon after and sat on the bench before later walking into the locker room with a medical staff member.

Center Jonathan Goodwin left via a cart with an unspecified leg injury. The severity is unknown, but Goodwin and teammates reacted on the field as though it might be significant before he was helped off the field by trainers.

Defensive end Glenn Foster was also ruled out of the game with a knee injury and was later seen on crutches. Nose tackle Brodrick Bunkley was ruled out after being tested for a possible concussion. And receiver Kenny Stills was sidelined on two separate occasions for undisclosed reasons. He mentioned afterward that he was ill, but it's unclear if that's the only issue he was dealing with.