I'm no doctor by any means (insert your "...but I play one on TV" joke here), but I've learned that when someone is walking around indoors wearing sunglasses after suffering a head injury, it's usually safe to assume they've suffered a concussion.
That's the case with offensive tackle Oniel Cousins, who was at the Ravens' facilities this afternoon and was wearing shades indoors, but sat out practice.
Head coach John Harbaugh confirmed today that Cousins has a concussion, and said that the Ravens will have to be careful with the third-year pro as he works his way back.
"The doctors will be very cautious with that," Harbaugh said. "That's the nature of it, that's the right thing. So we'll just have to see how that goes."
Cousins, who had been getting reps at right tackle with the Ravens' first-team offense, was carted off the field last Wednesday. Tony Moll has replaced Cousins at right tackle in his absence.
Meanwhile, Harbaugh said that wide receiver Demetrius Williams, who did not practice today after spraining his ankle during Saturday's preseason game, had the ankle swell up a little bit. That caused Williams to miss this morning's session.
"He was just a little too gimpy to go," Harbaugh said.