Georgia built a 2-0 lead but had trouble mounting more significant offense against LSU starting pitcher Nate Bumstead, who picked up a win in his first career SEC start. His performance on the mound allowed the Tigers to get back into the game at the plate with two runs in the seventh inning and the go-ahead run in the ninth.
Jake Tompkins, LSU's usual Sunday starter, replaced Bumstead to begin the ninth inning. He stranded a Bulldog at first to preserve the Tigers win and pick up his first save of the season.
Bumstead (2-1) struck out eight Bulldogs in eight innings of work while allowing two runs on seven hits and two walks.
A Chris Szabo single scored two runs for Georgia in the bottom of the fifth inning while Bulldogs starting pitcher Mickey Westphal held LSU scoreless with three hits over the first six innings. The Tigers also left the bases loaded against Westphal in the third inning.
Ivan Naccarata tied the score at 2-2 with a single to right center that plated Holt.
Brent Benefield (0-1) replaced Westphal and struck out four Tigers in a row before Liuzza led off the ninth with a first-pitch homerun to left field. It was the second of the series and the season for the freshman catcher from Metairie.
Georgia (11-10, 0-6) is off to its worst start in SEC play since losing its first six league games in 1995.
The win was the 60th at LSU for head coach Smoke Laval and keeps the Tigers in first place in the overall SEC standings.
It was the first three-game sweep in SEC play for LSU since the Tigers closed out the 2002 season with three wins against Alabama. The Tigers have swept four of their last eight SEC series going back to last year.
The Crimson Tide was also the victim of LSU's last three-game sweep on the road, having dropped all three games played at Tuscaloosa in 2001.