NFL Network's Jeff Darlington reports that Broncos SS Brian Dawkins' neck injury is "career threatening." "I continue to hear from my sources that this injury is career threatening and there is very little expectation that he will be able to return if the Broncos do indeed advance," Darlington reported on Around the League Friday. Dawkins may be headed for injured reserve shortly. David Bruton and rookie Quinton Carter will be the Broncos' safeties throughout the playoffs.