Here's what I know: The KC press conference had Chiefs GM Carl Peterson say Priest Holmes will be put on IR, but did not say anything else about Priest's medical condition.
Here's what I think: Priest has been getting second and third opinions on a growth in his lower back (on his spine). While checking Priest's concussion, I think the doctors found something else. When I hear anything about a growth, I think of a tumor and/or cancer.
Larry Johnson will be the starter. The Chiefs have worked out Tatum Bell (again) and I think they signed RB Dee Brown off a practice squad (possibly its own).