If you were following the blog during Sunday's game, you'll remember that I said there was something up with Julius Jones on the sideline. The trainers and doctors were talking to him during a timeout, then he sat out a series on the bench and was re-examined. He had to show the doctors on the sideline that he could run before they let him back in.
On Monday, I asked Mike Holmgren about it and he said Jones got "dinged." He then said he got knocked in the head pretty good. My guess is he had a minor concussion or something close since they were looking at him for so long, doing the track-my-finger-with-your-eyes deal.
But it obviously did not affect his play, he ran well after the "ding," though I did not get the chance to ask Holmgren if that was the reason he used Duckett so much at the end of the game.