The Ravens continued to be without rookie linebacker Courtney Upshaw Thursday as the top draft pick recovers from a shoulder injury. The 35th overall pick has missed four straight practices after sustaining a shoulder injury in Saturday’s workout. Upshaw appeared to suffer a stinger in a collision with rookie running back Bernard Pierece, but the 272-pound linebacker finished practice. Though the Ravens want to see Upshaw return to action as he’s expected to be the starting strongside linebacker, they aren’t concerned as long as the 22-year-old is ready to play in preseason games, starting with the opener in Atlanta next Thursday. “I’ll start getting worried if it’s halfway through the preseason,” defensive coordinator Dean Pees said. “What we just need to do is get him out there, especially in some preseason games, and have him hit, get hit, and actually play. It’s one thing to go out and practice. There’s different situations here in practice that are just not the same as game-type tempo and game-type situations, and that’s why we need to get him out there. I’m not too concerned, yet, until if we get down the road and he’s not playing any games. Then I will be concerned.”