FLORHAM PARK, N.J. - Jets cornerback Antonio Cromartie will be a game-time decision on Sunday against the Panthers after suffering his first career concussion in a collision with teammate Ed Reed last week.

Cromartie revealed Thursday that he played with a concussion symptom -- a headache -- late in the fourth quarter of the Jets' 37-27 victory over the Raiders.

Cromartie was injured when he collided with Reed on a 48-yard touchdown pass in the third quarter. He immediately was evaluated by the Jets' medical staff, but not for a concussion, a team spokesman said Thursday.

Cromartie said he started experiencing headaches late in the fourth quarter. He was evaluated again after the game, and it was announced that he had a head injury. On Monday, the Jets updated the diagnosis to a concussion.

Cromartie said he is symptom-free, but when asked if he expects to play Sunday, he said: "I don't know. We've got to see how everything goes. Honestly, I couldn't tell you that."

Cromartie was asked if the doctors were upset that he continued to play with the concussion symptom.

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"Yeah, I think everybody was," he said. "It was just the last [Oakland] drive. I felt it during the drive. After that last drive, that was it for us anyway. I went in right after the game and just told them that I was feeling a little headache or something like that. Just make sure everything was all clear from there."

Rest for Reed

Rex Ryan gave Reed the day off from practice to rest.

"Coach came to me this morning and said, 'Just take it easy today,' '' Reed said. "Personally, I don't really get into as much. I know it's needed. You've got to be smart when you're getting into the latter part of your years . . . Do I like it? Not as much. But it's not anything new to me."