Rex Ryan has said that he does not know whether Antonio Cromartie will be able to play for the New York Jets this weekend.

The cornerback picked up a knee injury during practice earlier this week, but tests ruled out any serious damage.

The head coach told reporters: "His knee gave and he went straight down. My initial reaction, obviously it wasn't good. A guy like him who's in phenomenal shape and all that, you're not thinking he's ever going to get hurt. He never takes a play off and then there he is laying on the ground.

"Obviously, there was a big concern but then later we found out that he's going to be OK. I don't know if he'll play this game or not, but it seems like he's going to be OK.

"If we think he's good to go, let's go. If not, then clearly we're not going to put him out there if he's at risk. How many snaps that means? I'm not sure. This is a guy that's in great condition and all that type of stuff. He's missed a day and a half of practice."

The Jets host the Pittsburgh Steelers tomorrow.