Unfortunately, LB David Herron will be ruled out with a knee injury of some sorts.  Herron has missed the entire week of practice so this isn't something we didn't see coming. 

We're not sure what the injury is exactly.

The rest of the Chiefs were upgraded to probable.

OL Wade Smith (ankle) and LB Mike Vrabel (hip) were both listed as limited participants yesterday.  Both have been upgraded to probably today, which means it's a virtual certainty they'll be available to play against the Raiders.

FS Jon McGraw (thigh), LB Jovan Belcher (head) and WR Chris Chambers (foot) were listed as probable and expect to be available.

So that means there's seven inactive spots remaining for the game on Sunday.  As Josh Looney pointed out today, it's "overwhelmingly" likely returning LB Justin Rogers will be active over LB Pierre Walters.

Along with Herron, QB Matt Gutierrez will likely be inactive (3rd QB), one of the WRs will be inactve, likely an offensive lineman will be inactive....who else could be inactivated on Sunday?  We need eight.