"Ed has a bruised knee, a sprained knee," Harbaugh said. "It’s nothing major in terms of ligament damage or anything like that. He’ll have a chance to get back this week.
"Dannell Ellerbe has kind of a foot-ankle (injury) thing. Has some swelling in there. He’ll have a chance to get back this week, too."
Neither will practice much, if at all.
Dickson went down on a special teams play when he was engaged with Jackie Battle in the Ravens’ 16-13 win at the San Diego Chargers. He only played 11 offensive snaps.
He left the game early in the second quarter, which put an extra burden on the other starting tight end, Dennis Pitta.
"I’m definitely a bit more tired because Ed went out," said Pitta, who played 81 of 93 possible offensive snaps and caught a 4-yard TD pass. "That means I had to be out there the whole time. That’s exciting because I want to be out there and do as much as I can."
Ellerbe, who has been playing with casts on his thumbs most of the season, hurt his leg late in the second quarter and didn’t return. He was in pass coverage on San Diego’s Antonio Gates and pulled up limp on the sideline. No one made contact with him.
He was replaced by Brendon Ayanbadejo.
Anthony Levine, who was recently activated from the practice squad for special teams, was placed on injured reserve Monday because of a shoulder injury. The Ravens activated David Reed, who has been inactive all season because of a knee injury, to the 53-man roster.
Defensive end Pernell McPhee missed his fourth game with a knee injury. There’s a chance he could play vs. Pittsburgh. He’ll practice this week.