The Broncos defense is on the cusp of taking a huge hit.
ESPN's Adam Schefter reports that All-Pro linebacker Von Miller is facing a four-game suspension for violating NFL policy.
Schefter didn't say which policy Miller violated. The case is currently in the appeals process.
Miller's suspension would cap off an ugly month for the Broncos, who've suspended team executives Tom Heckert and Matt Russell after they were both arrested on separate DUI charges.
One of the league's most skilled pass-rushers, Miller recorded 18.5 sacks in 2012 and was expected to be relied on heavily in Denver following the departure of Elvis Dumervil.
If suspended, Miller would be eligible to return in Week 5.
UPDATE: Per the Denver Post, Miller's suspension is for testing positive for amphetamines and marijuana during his rookie season in 2011. Now a two-time offender, Miller's ban is almost certain to be upheld. He's expected to release a statement later today.