Wake-up: Ed Dickson unsure about opener

This is technically your wake-up call. But, by the looks of the reports coming out of AFC North camps, this is really your mid-August injury report ...

RAVENS: Why did the Ravens decide to sign tight end Dallas Clark on Sunday? Perhaps it's because of the uncertain status of Ed Dickson (hamstring), who was noncommittal on whether he'll be ready for the Sept. 5 season opener. "I can’t make any predictions but I’m working hard to do that," Dickson said, via The Baltimore Sun. "It's one of those things where it was really sore and I tried to prevent it by doing other things. The doctor said it went all the way through, so it's not lingering through the season so I can get all the way healthy and make me back to 100 percent." Wide receiver Deonte Thompson (foot) won't play in Thursday's preseason game and backup running back Bernard Pierce (knee) hasn't been ruled out.

BENGALS: Wide receiver Marvin Jones returned to practice after missing two weeks with a hamstring injury. Jones, who is battling Mohamed Sanu for the No. 2 receiver job, believes the injury has re-energized him. “Whenever you are out and have to sit on the sidelines, that is the boringest thing ever,” Jones told The Cincinnati Enquirer. “You have to sit there when you want to be out there with your brothers competing and playing. When you are on the sideline it’s no fun. When I got back it was a big old boost of energy.”

STEELERS: Safety Troy Polamalu looked like his old self in the preseason opener, roaming all over the field and being disruptive near the line of scrimmage. But his one crucial mistake -- failing to have deep coverage on a deep pass to Victor Cruz -- resulted in a 57-yard touchdown. "I made a mistake that I know I have to correct and that's huge," Polamalu told The Pittsburgh Post-Gazette. "It's better than making it in Week 1. But there's also part of the preseason where you have to get a feel for what you can get away with and what you can't get away with. So we learned a lot, speaking for the first-team defense, for sure."

BROWNS: Running back Trent Richardson told The Akron Beacon Journal that he's fully recovered from a shin injury and wants to play in Thursday's preseason game. But Richardson understands the Browns' big-picture approach. “The ultimate goal is to make it to Miami, but it’s one day at a time,” Richardson said. “You don’t want to do nothing too crazy to get hurt. At the same time, you want to be on time with everything, with your timing, the game conditioning and everything like that." ... CEO Joe Banner reprimanded former Browns quarterback Bernie Kosar for his "personal and unprofessional approach" during Thursday's broadcast of the preseason game against the St. Louis Rams, but he decided to keep Kosar as a commentator for the remaining three preseason games.