I personally know Rob Brown (starting DE for Packers from 82-92) and when I asked him how many times he personally tackled (or even assisted in tackling) Barry Sanders, he said ZERO. I asked how many times he touched him, he said once when he grabbed for his jersey.
He stated that Sanders was so small and fast, it was very hard trying to square up to tackle him. IMO, that says something because 10 years is a long time to play against a team 20 times and only touch the guy once.