OWINGS MILLS, Md. (AP) Baltimore Ravens tight end Darren Waller has been given a four-game suspension for violating the NFL Policy and Program for Substances of Abuse.

Waller will miss the team's first four games of the 2016 season. He can return to the active roster after the Ravens face the Oakland Raiders on Oct. 2.

Neither the Ravens nor the league released details of Waller's violation.

More from FoxSports

Waller played for Georgia Tech before being selected by Baltimore in the sixth round of the 2015 draft. As a rookie, he caught two passes for 18 yards.

The 23-year-old Waller is eligible to participate in all preseason practices and games this summer.

---

AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFL