FLORHAM PARK, N.J. –- Just as the New York Jets defense got Sheldon Richardson back on the practice field, cornerback Darrelle Revis was sent home due to his concussion.

Revis is still in the concussion protocol and the Jets are preparing to play Sunday against the Miami Dolphins without their top corner.

“I sent him home today and he is still going through (the protocol),” Coach Todd Bowles said. “Hopefully, he will feel a little better as the week goes. He wasn’t 100 percent still and the docs won’t let him sit in meetings just yet.

“We are ready to play without him, but if he comes back it will be a bonus,” Bowles added. “We will see later in the week, but we are preparing to play without him.”

The Jets are hoping to have center Nick Mangold against the Dolphins. Mangold did not practice after getting seven stitches to seal a gash on his right hand. The center hopes to attempt to snap on Thursday.

“He has been the quarterback of this offensive line for a long time,” Bowles said of Mangold’s importance. “Guys rely on him for everything, whether it is the calls, the blocking schemes or the enthusiasm.

“You overlook (just how vital Mangold is) and you get complacent when you have a guy at that spot for a long time and he is making all the calls, so you have a comfort level,” Bowles later added.

Richardson is set to return after missing last Sunday’s loss in Houston with a hamstring injury. The star defensive end said he thought he might've been able to play against the Texans but that Bowles and the Jets thought better to keep him out.

“Felt like back to myself,” Richardson said of how he felt in practice on Wednesday.

If Revis is unable to play on Sunday, Bowles said that Buster Skrine or Marcus Williams could start in Revis’ place.