Watch: LSU G Keith Hornsby's buzzer-beating three beats No. 18 Arkansas

LSU's Keith Hornsby hit a buzzer-beating three-pointer to lift the Tigers over No. 18 Arkansas on Saturday.

LSU has been living on the bubble, and its 15-point home loss to Tennessee on Wednesday did the Tigers absolutely no favors.

Its regular season finale on the road at No. 18 Arkansas on Saturday presented an even tougher task, but this is a team fighting for its life. And with the game tied at 78 and holding one last possession, LSU junior guard Keith Hornsby buried a three from the corner to beat the buzzer and give the Tigers one of their top two wins on the season.

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Hornsby, who shoots 39.3% from three on the season, was 0-for-3 from beyond the arc on the day before hitting the game-winner.

He finished with 13 points and six rebounds, while Jarell Martin torched the Razorbacks for 27 points and Jalyn Patterson added 20.

Bobby Portis gave a 21-point, 15-rebound effort for Arkansas in the loss.