Let's take a quick lap around the Friday practice circuit as we get ready for the eighth glorious week of elegant violence.• It was another limited day for Calvin Johnson (knee) on Friday; he's a game-time decision for the Rams. At least it's an early matchup, so we'll know far in advance of the windows closing. Matthew Stafford(notes) (knee) should be able to start, though he didn't take all the reps Friday. • Brian Westbrook(notes) was held out of practice for ...