Pittsburgh in '86 for one. That was the most memorable.
As I recall, FSU and Sammy Smith did too. A great passing attack kept us in the game.
I recall Michigan running a lot on us in '88. Again, a great game by Steve Walsh brought us back.
Typically, JJ's defenses we're susceptible to big running plays. It was also typical that his forcing defense (as Jimmy chatlracterized it) also made a lot of big plays (TFLs, sacks, fumbles, picks). Diaz did his job. He stopped a lot of drives with no points. He made a lot of TFLs.
Again, our offense produced nothing. Our defense played well enough. We could have been in the game had our defense produced something. It produced nothing. Even worse, it gave Wisconsin gift after gift.