Ravens Pro Bowl defensive tackle Haloti Ngata has been suspended for four games for violating the NFL's performance-enhancing drug policy.
Ngata, 30, had 31 tackles with two sacks, two forced fumbles and two interceptions through 12 games for the Ravens, who must now continue their playoff push without the five-time Pro Bowler.
The Ravens are among three AFC North teams with a record of 7-5 with games left at Miami, against Jacksonville, at Houston and against Cleveland.
Ngata will be eligible to return for the postseason if Baltimore can manage to win the division or grab a wild-card berth. A feat made even more difficult with the loss of Ngata.
Rookie Timmy Jernigan, a second-round pick out of Florida State, will likely start in Ngata's place. Jernigan has appeared in eight games, recording 12 tackles and two sacks.