Derrick Williams leads Arizona
Arizona faces Duke on Thursday night in Anaheim. Reuters

There are four games tonight in the Sweet 16.

The winners of tonight's games move on to the Elite Eight on Saturday. The winner of Duke-Arizona plays the winner of Connecticut-San Diego State. The winner of BYU-Florida will take on the winner of Butler-Wisconsin.

No. 3 Connecticut faces No. 2 San Diego State in Anaheim. (7:15 pm EST; TV: CBS)

No. 3 BYU takes on No. 2 Florida from New Orleans. (7:27 pm EST; TV: TBS)

No. 5 Arizona plays No. 1 Duke from Anaheim. (9:45 pm EST; TV: CBS)

No. 8 Butler meets up with No. 4 Wisconsin in New Orleans. (9:57 pm EST; TV: TBS)

There will be four more games on Friday.

Let the madness begin.