No. 10 Kentucky Upset by South Carolina on Jermaine Couisnard's Buzzer-Beater

The South Carolina Gamecocks shocked the No. 10 Kentucky Wildcats on Wednesday night, winning 81-78. 

Jermaine Couisnard was the hero for the Gamecocks, hitting a buzzer-beating three to secure the win. He also scored a game-high 26 points.  

Keyshawn Bryant added 15 points and five rebounds for South Carolina. 

Immanuel Quickley led the way for Kentucky off the bench with 20 points, while Nick Richards contributed 15 points and seven boards. 

The game appeared set for overtime after A.J. Lawson missed two free throws with just 16 seconds remaining and Quickley's jumper tied the game at 78 apiece with four seconds on the clock. But Couisnard saved his best for last, racing down the floor and sinking a contested three as his teammates flooded the court in celebration. 

It was a brutal loss for Kentucky, who held a 14-point lead early in the second half and went ice cold late, missing eight of their last 10 shots. Certainly, nobody would have seen this upset coming outside of the most optimistic South Carolina fans.

It isn't the Wildcats' only head-scratching loss this year, however:

The Wildcats will attempt to get back to their winning ways on Saturday at 4 p.m. ET against Arkansas, while South Carolina will look to build on their impressive win earlier that same day against Texas A&M at 1 p.m. ET.