Shop Smart Shop pointed out in a thread that there were only 10 players on the field during a punt against Rutgers but I didn't see any definitive screen shots on that thread so I thought that I'd use MGoVideo's video to grab some for the benefit of the board (GoBLUinTX usefully pointed out the key moment).
Here's the key image, labelled (click all images to embiggen in a new window). Norfleet is off the screen (I don't think that the ref is Dennis Norfleet).
Here are two shots from the end zone immediately before the punt (the clock isn't running because Michigan had called a time-out):
Just before the punt, the camera angle changes:
and with labels:
Just before the punt, Delonte Hollowell (#24, my number 3) moves to help out with the gunner on the top of the screen (the boundary) and Rutgers punts:
With labels (numbers are the same as above):
And here's the 11th player running onto the field late just before the punt, early in the 3rd quarter (the ball was punted at 12:58):