Giant Killers: If these teams get in, they could be trouble

Notre Dame, Louisville on bubble watch in ACC tournament (0:41)

Joe Lunardi says Notre Dame has to win at least two games to be a "realistic at-large candidate" in the NCAA tournament. (0:41)

Lurking in the shadows of this week's conference tournaments are some ferocious Giant Killers ready to invoke chaos on this year's Big Dance. They just have to get there.