Darrelle Revis is back in action for the New York Jets.

The All-Pro cornerback was cleared Thursday for contact in practice for the first time since suffering a concussion in the team's season opener. And, as far as Revis is concerned, there's no doubt whether he'll be on the field against the Dolphins in Miami.

"I'm playing," Revis said after practice. "The doctors cleared me, so I'll be playing Sunday."

He has no more restrictions, and just to show how ready he is, Revis jokingly added: "I can bang my head on a wall if I want to."

Coach Rex Ryan was also optimistic about Revis' chances of playing Sunday, but said before practice that he'll lean on the team's doctors before saying the cornerback will definitely be on the field in Miami.

"If it's not the final hurdle, I don't want to be saying something that isn't true," Ryan said. "Hopefully he'll play, but I guess we'll see."

Revis practiced fully Thursday after passing all required tests. He needed to be cleared by the team physician and an independent neurologist to participate in contact drills. Revis was injured Sept. 9 against Buffalo when he was accidentally kicked in the head by teammate Bart Scott while attempting a tackle.

- Associated Press