The New York Giants do not know yet how long they will be without cornerback Kenny Phillips, who left Sunday night's game in the first quarter with a knee sprain.

Phillips was able to walk to the locker room on his own after the injury.

"Yeah, great concerns," Giants coach Tom Coughlin told the Bergen Record after their 19-17 loss to the Philadelphia Eagles. "I don't know what it is about that spot but we're certainly having a difficult time being able to stay together and stay whole. Give credit to the guys who fought their way through it tonight. I'm sorry Kenny went down.

"Hopefully we'll find out that it's something he can come back from soon. I don't know that for a fact."

The Giants have had a host of injuries in their defensive backfield.

Terrell Thomas is out with an ACL injury and Jayron Hosley and Michael Coe were inactive with hamstring injuries.

Safety Antrel Rolle played despite being questionable with a knee injury. He collided with a camera the week prior at the Carolina Panthers. Cornerback Corey Webster also played with a cast on his broken hand.

While not injured, Tyler Sash is expected back this week after serving a four-game suspension.