Associated Press

The biggest upset this March isn't a wild heave at the horn for a winner from a No. 15 seed or a First Four team somehow weaving into the second weekend.

Casey did just that, closing with a 1-over 72 for a one-shot victory that made him the first back-to-back winner in the 19 years of the tournament.

Dominant defense earned Texas Tech their second consecutive trip to the Sweet 16. Jarrett Culver had 16 points and 10 rebounds as the Red Raiders shut down Buffalo 78-58.

The Hokies advanced to the Sweet 16 of the NCAA Tournament for just the second time in school history, knocking off Liberty 67-58 in the second round of the East Region.

Houston's fans chanted "Sweet 16" in the final minute of the Cougars' NCAA Tournament win over Ohio State. It's been 35 years since the Cougars have made this trip.

Dubois had a goal and an assist and goaltender Sergei Bobrovsky stopped 21 shots as Columbus improved their playoff chances with a 5-0 victory over the Canucks.

Tony Bennett opted for Mamadi Diakite to start instead of Jack Salt against Oklahoma and the junior scored 14 points to lead the Cavaliers to a 63-51 win.

Tennessee avoided one of the biggest meltdowns in NCAA Tournament history, before SEC player of the year Grant Williams asserted himself in overtime for an 83-77 victory over Iowa.

Rob Gronkowski, the Patriots' fun-loving, touchdown-spiking tight end announced that he is retiring from the NFL after nine mostly dominant, Super Bowl-filled seasons.

Zion Williamson had 32 points and helped rally the Blue Devils from behind in the final minute for a 77-76 victory Sunday to reach the Sweet 16.