BATON ROUGE, La. -- Sophomore right-hander Keegan Thompson pitched his second-straight complete game and Anfernee Grier had a career-high three RBIs as Auburn baseball defeated No. 1 LSU 6-1 on Saturday at Alex Box Stadium.
Thompson improved to 7-2 on the season as he scattered six hits with three strikeouts and one walk. He is the first Auburn pitcher to notch consecutive complete games since former Tiger Colter Bean did it against Charlotte (3/4) and South Carolina (3/13) in 2000.
"Keegan is special and we say this all the time, but I hope we don't take him for granted," Auburn head coach Sunny Golloway said. "He's a special competitor. But I've got to give it to our position players. They came out and gave him run support and played great defense. They had fun playing tonight."
The victory for Auburn was its first over the No. 1 ranked team in the country since defeating top-ranked Vanderbilt on May 13, 2007.
Grier's SEC-best 17th double of the season gave Auburn (21-14, 5-9) a 1-0 lead in the third inning as he drove home Melvin Gray.
Gray scored again in the fifth as Grier picked up his second RBI of the night on his second triple of the season for a 2-0 advantage.
Grier had three hits to go with his three RBIs.
Auburn added three runs in the sixth on a two-run triple by Cody Nulph and a RBI single from Jackson Burgreen. Nulph's hit came on a full-count with two outs, then Burgreen followed with his first RBI of the season.
LSU (30-6, 9-5) got on the board in the eighth with a solo home run by Andrew Stevenson.
Grier drove in Burgreen for the final run in the ninth.
Austin Bain (0-1) was charged with the loss in his first career start. He pitched 5.1 innings and allowed five runs on six hits with seven strikeouts and three walks.
Jared Foster led the Bayou Bengals with two hits.
The rubber match of the series is scheduled for 1 p.m. CT on Sunday. The game will be broadcast on SEC+.