There was a lot of news on the Raiders injury front today. Here is the most current status of several injured players as of today:

Derek Carr returned to practice today. He left in the fourth quarter against the Lions of an apparent rib injury. Dennis Allen said following the game that Carr suffered a concussion. Well, he's back after missing just one practice and is wearing extra padding around his ribs according to Vic Tafur of the San Francisco Chronicle. Can't be too careful with those concussions.

Justin Ellis is still not practicing with the concussion he suffered in the team's first preseason game. That was ten days ago.

DJ Hayden was seen working out on the side, doing lateral movements as Tafur tweeted:

Hayden doing some cutting on far field. #Raiders pic.twitter.com/Bv6HPS7eXV — Vic Tafur (@VicTafur) August 18, 2014

Dennis Allen said with certainty this weekend that Hayden would not return this week. Even with his working on the side, there's no telling when he'll be ready to return to action. Keep in mind that Usama Young and Neiko Thorpe were among those working on the side at camp as of two weeks ago and Young just returned yesterday while Thorpe remains out.

Usama Young officially came off the PUP list yesterday. Hayden and Lucas Nix are the only players remaining on PUP.

Marcel Reece couldn't finish Sunday's practice. He was seen today wearing a walking boot. Hopefully Dennis Allen will be able to add some clarification on his injury after practice today.

UPDATE: Dennis Allen said following practice that Reece has a foot injury. He will have an MRI on the foot and his timetable for return is uncertain.

Also leaving practice early yesterday with an injury was Brice Butler. He was not practicing today either.

UPDATE: Dennis Allen said after practice that Butler suffered a concussion which is why he is not practicing.

Others still not practicing are Chimdi Chekwa (knee), Juron Criner, David Ausberry (knee), and Nick Kasa (ACL).

Follow @LeviDamien