Ravens' Darren Waller: Suspended for four games

Waller has been suspended four games for violating the NFL's substance abuse policy.

Waller will be able to stay with the team through training camp and the preseason before serving his suspension once the season begins. In six games as a rookie last year, he recorded just two receptions for a total of 18 yards, though he did have a greater impact on special teams, where he was a gunner. He'll look to improve on his offensive numbers from last season once his suspension is complete.