Kentucky and Princton are involved in a close game, with the Wildcats leading the Ivy League school 34-33 at half time.
The game is being dominated by two guards: Kentucky's Darius Miller, and Princeton's Douglas Davis.
Miller has scored 15 points on five-of-eight shooting, while Davis has scored 13 points on five-of-eight shooting.
Kentucky is shooting 54 percent and has six blocks.
Princeton is shooting 48 percent and hit all five of their free throws.
A Princeton victory would be a tremendous upset. Kentucky went into the tournament ranked 11th in the nation.
The winner of this game faces West Virginia.