Arizona Cardinals coach Bruce Arians: Julius Thomas' hit on Calais Campbell was the 'dirtiest play I've ever seen.'

Arizona Cardinals defensive end Calais Campbell will miss three to four weeks with an MCL injury. The injury came on a hit from Denver Broncos tight end Julius

Arizona Cardinals defensive end Calais Campbell will miss three to four weeks with an MCL injury. The injury came on a hit from Denver Broncos tight end Julius Thomas, a play Cardinals coach Bruce Arians called the dirtiest he'd ever seen.