as per Jane McManus of ESPN New York:
Notably, RB Joe McKnight failed his conditioning run and won't practice with the team until he passes it. He was placed on the active non-football injury list.
Now I'm starting to wonder what the deal is. It was one thing when it was happening in some minicamp. Now he's had plenty of time to learn from it and correct it.
Let's not go overboard. This is small potatoes at this point. This just isn't the news anybody wanted to see. This probably jumped from nonissue to mild concern.