Jonathan Casillas has developed into one of the Badgers’ best linebackers, but he solidified his place in Wisconsin history long ago. For all the tackles he makes now by crossing the field and all the receivers he covers seamlessly, the junior will always be remembered for one play. Two years ago, the unknown freshman blocked a punt that was recovered in the end zone with 30 seconds left against rival Minnesota to cap a 10-point comeback in the closing minutes.