The Facts: Miller suffered a concussion in the second half of tonight's game against the Ravens and will not return.

Diehards Line:Miller went down after a brutal hit that bent his neck backwards, left him motionless on the ground and had Ravens defenders immediately motioning to Pittsburgh's sideline for assistance. Remarkably, Miller eventually walked off the field under his own power. ... Nonetheless, he'll also be required to go through the series of tests and evaluations mandated by the league's concussion policy. We'll have more as the week progresses.