The Ravens will have tight end Dennis Pitta at the San Diego Chargers on Sunday, a week after leaving a game with a concussion.
Pitta had one catch for 5 yards in a 13-10 win at the Pittsburgh Steelers and didn't return after he was hit. The week before, in a 55-20 win vs. the Oakland Raiders, Pitta was dinged from a hit.
Asa Jackson, a rookie cornerback who was taken in the fifth round, finally will be active for the first time this season because the Ravens are thin in the secondary.
Already missing Jimmy Smith (groin surgery), who replaced Lardarius Webb (season-ending knee surgery), they lost Chris Johnson (strained hamstring) who won't be active Sunday.
Johnson, a nine-year veteran, was signed as a free agent just two weeks ago but he hurt himself in the second quarter against Steelers when he landed awkwardly on his leg.
It was Johnson's first game as he played only six snaps and forced the Steelers' first turnover to help the Ravens mount a comeback.
For the fourth consecutive game, defensive end Pernell McPhee won't play because a troublesome knee. Left guard Bobbie Williams (ankle) is inactive, too, as well as guard Ramon Harewood, receiver/returner Deonte Thompson and defensive tackle Bryan Hall.
For the Chargers, starting left guard Tyronne Green (hamstring) and defensive tackle Aubrayo Franklin (knee) will be inactive. Rex Hadnot will replace Green and Cam Thomas steps in for Franklin.
Left tackle Jared Gaither, who played for the Ravens for his first four NFL seasons out of the University of Maryland, was put on injured reserve Friday. Kevin Haslam was activated from the practice squad and will replace him in the starting lineup in a surprise move.
Haslam, who initially was expected to back up Michael Harris at the position, is in his third season out of Rutgers where he was part of the same freshman class as Ravens running back Ray Rice.