Jay Foster, on that one play in the 3rd quarter (if we are talking about the same play) Jeff Faine wiffed on his block and Reggie anticipated the block and ran right into the defender.
If that is at 12:51, then that is the one. No where for the rb to go so he gets tagged by the defender.
Interestingly enough, if you notice, they stopped all our running backs because they wanted to stop the run. I thought our rbs actually did fairly well considering the stacking up of the defenders at the line.