EAST RUTHERFORD, N.J. (AP) _ New York Giants safety Sam Garnes will have a post-concussion evaluation Tuesday to determine whether he can play this weekend against Philadelphia.

Garnes, injured in the fourth quarter of the Giants' 21-16 victory over Arizona on Sunday, still had lingering headaches and some memory loss after being released from the Hospital for Special Surgery, where he was held overnight for observation.

``Right now I think I probably won't play, but I'm going to fight to the end,'' Garnes said after returning to Giants Stadium on Monday. ``I'm here to play football and I can't have my boys go out there by themselves.''

Garnes was knocked out for about 30 seconds after colliding with teammate Jessie Armstead trying to break up a pass. Armstead seemed to hit Garnes on the side of the head.

``I just know I was going toward the middle, that's the last thing I remember,'' Garnes said.