For the third consecutive day LSU went ahead of Auburn in the first inning and stayed there throughout, completing a series sweep with an 8-2 victory Sunday afternoon at Alex Box Stadium.

Chris Chinea’s two-run single was the key hit in a four-run first inning and Alex Bregman extended his hit streak to 12 games with his third three-hit game in the series.

Mark Laird and Mason Katz also had three hits each among LSU’s 13 hits.

Left-hander Cody Glenn (4-1), who was ineffective in his first Southeastern Conference start at Mississippi State a week earlier, limited Auburn to two runs on six hits in 7.2 innings. His career-long outing was also the longest by an LSU starter this season.

Auburn had a base runner in every inning against Glenn except the fifth, but he stayed in control. Auburn scored seven runs in the series and didn’t have a multi-run inning

Third-ranked LSU (22-2) improved to 5-1 in Southeastern Conference play for the second time in coach Paul Mainieri’s seven seasons. LSU plays at Tulane on Tuesday. Auburn is 15-9 and 0-6.

LSU, which took a 3-0 lead in the first Friday and a 2-0 first-inning lead Saturday, scored four runs without hitting Auburn starter Will Kendall (0-1) hard.

Chris Sciambra led off with a pop up that became a double when left fielder Cullen Wacker couldn’t handle it in the gusting wind and sun.

Laird followed with a liner that second baseman Jordan Ebert mishandled. Laird got a single as Sciambra held second.

Bregman and Raph Rhymes both hit into fielder’s choices, which sent Sciambra home. Katz beat out a dribbler to third and Christian Ibarra and JaCoby Jones walked, forcing in the second run.

That brought starter Kendall’s pitch count to 36, just four shy of his predetermined limit, and coach John Pawlowski brought in reliever Terrance Dedrick. Chinea’s single made it 4-0.

Auburn scored a run in the second on Garrett Cooper’s one-out double and Blake Austin’s two-out single.

LSU scored two in the second as Laird, Bregman and Rhymes had consecutive singles and Dedrick threw a wild pitch.

The lead grew to 8-1 in the sixth on consecutive RBI doubles by Laird and Bregman.

Glenn got the leadoff hitter in the eighth, but couldn’t finish the inning, giving up a walk, hit batsman, single and sacrifice fly before Will LaMarche relieved. LaMarche hit Cooper to load the bases, then got Patrick Savage on a liner to right.

Chris Cotton pitched a scoreless ninth.