Kansas City Chiefs rookie outside linebacker Cameron Sheffield went down on Friday night against the Philadelphia Eagles. Sheffield and running back Mike Bell met on a helmet-to-helmet hit. After the collision, Sheffield hit the ground and didn't get up.

The Chiefs are officially characterizing it as a neck injury at this point.

Chiefs LB Demorrio Williams told us after the game that at first he thought Sheffield had "just dislocated his shoulder or something" but quickly realized the severity of the situation.

"It was kind of weird because I looked at him and he ain't even moving," Chiefs LB Demorrio Williams softly told us after the game. "His eyes and stuff like that...he's just looking. I was worried about him because he's like a little brother. Everyday I'm in a meeting room with him and practice with him every day. You always hate to see something like that happen."

Williams did say that they were told Sheffield is moving. Beyond that, we're slim on details.

Head coach Todd Haley briefly discussed Sheffield but didn't divulge any details.

"Right now I don't have any information I feel comfortable giving because there are a lot of family and friends out there of Cameron's and I don't want to say something and it ends up being wrong. I just want him and his family to know the Kansas City Chiefs are praying for him."

We wish the best of luck and a quick recovery to Cameron Sheffield.