Updated

Giants coach Tom Coughlin says he has not ruled running back Ahmad Bradshaw out from Sunday's matchup in Atlanta, despite a knee injury.

But Bradshaw, injured vs. New Orleans last Sunday, missed practice on Wednesday, and Coughlin kept open the possibility that rookie backup David Wilson could start against the Falcons (11-2).

"I'm not going to talk about the percentages or anything like that," Coughlin said about Bradshaw's chances. "You can speculate knowing what the injury is. The other day when he had the injury, he taped it up and went back in and made three short-yardage runs in a row for a key first down. No one really knew what was going on there. He told me he had no limitations.

"He's a tough son of a gun."

Bradshaw spent the portion of practice open to the media getting treatment in the locker room. If he is unable to play Sunday, Wilson would start for the Giants (8-5), with Ryan Torain and Kregg Lumpkin also seeing some snaps.

Cornerback Prince Amukamara (hamstring) and safety Kenny Phillips (knee) also missed practice.