Non-conference play is an essential part of a college basketball season. Teams that have weak schedules early in the year are typically met with a rude awakening come NCAA tournament time.
A great example of this is Louisville, a team that came into the season dominating opponents like IUPUI and Fairleigh Dickinson, and has now lost five of their last seven.
During their run, the Cardinals were ranked in the top five, and are one bad loss away from falling out of the top 25.
Louisville is still considered to be in the NCAA tournament, but with more games like the 90-59 drubbing they received at Providence, Rick Pitino's squad may be on the outside looking in.
Here are 15 teams that are already on the tournament bubble.