Ngata said in a statement that he took Adderall and takes "full responsibility for doing this."
"I am deeply sorry and broken up over this. I let down my family, my teammates, Ravens fans and myself. My hope is that the Ravens make the playoffs, and I believe they can do this. And, then I can come back and help us win," Ngata said.
The Ravens have four games left in the regular season. Ngata will miss contests against the Miami Dolphins on Sunday, the Jacksonville Jaguars (Dec. 14), Houston Texans (Dec. 21) and the Cleveland Browns (Dec. 28). He is eligible to return on Monday, Dec. 29.
"This is disappointing news for the Ravens. We are disappointed with Haloti, but not more than he is with himself,” Ravens general manager Ozzie Newsome said.
The Ravens are in a three-way tie for second place in the AFC North, behind the Cincinnati Bengals.
Ngata, a three-time first team All-Pro selection and five-time Pro Bowl defender, has 31 tackles, two sacks and two fumble recoveries this season. He is tied for the team lead with two interceptions.
Aaron Wilson of The Baltimore Sun reports that the Ravens found out about Ngata's suspension on Wednesday.
Ravens learned of pending news with Haloti Ngata Wed. from team president Dick Cass, according to a source. Team is extremely upset with him— Aaron Wilson (@AaronWilson_NFL) December 4, 2014
Haloti Ngata will lose $2 million from his $8.5 million base salary. That number will be subtracted from the Ravens' salary cap— Aaron Wilson (@AaronWilson_NFL) December 4, 2014
- Scooby Axson