The Kentucky Wildcats are two wins away from a national championship. More importantly, they’re also two wins away from posting the first perfect season in NCAA men’s basketball history since the Indiana Hoosiers did it in 1976. But not everybody’s rooting for the Wildcats to make history and of that growing bandwagon, a handful of sportsbooks are beginning to jump on board.

It’s not just Kentucky winning the national title that books are sweating over. Some books posted props on whether the Wildcats would go undefeated this season with odds as high as 50/1. Turns out, those odds attracted a few bets and now, they’re all live and are dangerously close to cashing in and sinking huge liabilities for these books.

Other sportsbooks have also found themselves chewing their nails over the possibility of Michigan State winning the national title. It seemed like a long shot for the 7 seed Spartans to make a long run at the tournament as early as a few weeks ago when they were listed in a handful of books at 100/1 to win the national title. But now, they’re in same place as 1 seeds Kentucky, Duke, and Wisconsin are: two wins away from a national title.

The Spartans are still 8/1 odds at the moment, the highest of the four teams in the Final Four, but back when they were still 100/1, a few sportsbooks accepted small bets on Michigan State that, when piled together, could still end up with them being in five-figure holes.