BATON ROUGE -- Junior left-hander Rob Marcello limited No. 7 LSU to one run in 8.1 innings Sunday as Appalachian State (4-2) defeated the Tigers, 11-1, in the final game of the three game series in Alex Box Stadium.
The Mountaineers, who defeated LSU 1-0 on Saturday, took the final two games of the series. LSU won the opener 4-0 on Friday night.
The Tigers (5-2) return to action on Tuesday against Grambling State at 6:30 p.m. in Alex Box Stadium.
Marcello was stellar throughout the game and limited LSU to just three hits and two walks. He struck out four in the winning effort to pick up his second victory of the year.
LSU's starter Kurt McCune (1-1) had the shortest starting outing of his career. The sophomore worked three innings, allowed seven hits, four runs, three earned runs, and two walks and struck out two.
"We obviously have a lot of work to do, but this is a time for us to stand up and accept this loss like men," said LSU coach Paul Mainieri. "It's tough to believe it happened, but it did, so we have to keep our chin up and work every day to get better. Appalachian State deserves a lot of credit for the way they played all weekend - they brought a lot of energy to the ball park and they played with a lot of confidence.
"We'll work with our players to get their confidence back up starting on Monday, and we'll have a lot of innings and a lot of opportunities to improve this week."
Will Callaway and Tyler Zupcic drove in three runs apiece for Appalachian State.
Appalachian State opened the scoring in the top of the first. McCune allowed a leadoff walk to Hector Crespo, then struck out the next two hitters before Daniel Kassouf punched a single up the middle to place runners on the corner with two outs.
Tyler Tewell hit a grounder that a diving Casey Yocom barely missed at second base. The single to right brought home Crespo and moved Kassouf to second. McCune forced Jeremy Dowdy to ground out to third to end the inning.
LSU nearly tied the game in the top half of the first. Yocom lined a one-out single to left. Katz reached first on a full-count walk and prevented a double play on a hard slide at second. Raph Rhymes reached first on the fielder's choice and moved Yocom to third. Rhymes moved to second on a wild pitch, but JaCoby Jones grounded out to second to the end the threat.
The Mountaineers took a 2-0 lead in the top of the second. Trey Holmes drove a two-out double into the right-center gap. Crespo hit a hard grounder to third, Hanover made a nice diving stop, but the throw to first one-hopped past Katz. Holmes scored on the throwing error.
Appalachian State added two more off of McCune in the top of the third. Kassouf produced a leadoff double down the left field line. Tewell bunted Kassouf to third and Jeremy Dowdy popped out behind home.
Zupcic knocked a triple off the left field wall, which scored Kassouf. Noah Holmes plated Zupcic on a single to center.
Appalachian State increased the lead to five in the top of the fourth. Joey Bourgeois replaced McCune and was greeted by Crespo's lead off single up the middle. Troutman bunted Crespo to second, and he moved to third on a wild pitch.
Callaway's deep fly to right was caught by Rhymes, but Crespo tagged up and beat the throw home.
Appalachian State added two more in the top of the seventh. Callaway hit a leadoff seeing-eye single off of reliever Kevin Berry between third baseman Tyler Hanover and shortstop Austin Nola. Kassouf drew a walk and Tewell bunted him over to third. Hanover mishandled the ball and all runners were safe.
Dowdy drew a walk to plate Callaway and keep the bases loaded. Chris Cotton stepped in and retired Noah Holmes, but proceeded to hit Trey Holmes to bring home Kassouf.
Kassouf hit a two-out single to right in the top of the eighth and moved to second on Tewell's base hit. Dowdy walked to load the bases before Zupcic drilled a double to left center and plated two to increase the lead to nine.
Trey Holmes hit a single in the ninth and moved to second on Crespo's walk. Troutman moved both of them over on a sacrifice bunt. Callaway knocked a single up the middle to plate both runners and increase the lead to 11-0.
The Tigers got on the board in the bottom of the ninth. Katz drew a one-out walk and Fields smacked a triple into the right field corner.
Appalachian State 11, LSU 1 (Feb 26, 2012 at Baton Rouge, La.)
Appalachian State... 112 100 222 - 11 14 0 (4-2)
LSU........................... 000 000 001 - 1 4 2 (5-2)
Pitchers: Appalachian State - Rob Marcello; David Port(9) and Jeremy Dowdy; Derek Brown.
LSU - Kurt McCune; Joey Bourgeois(4); Brent Bonvillain(6); Kevin Berry(7); Chris Cotton(7);
Michael Reed(8); Nick Rumbelow(8) and Ty Ross; Jordy Snikeris.
Win-Rob Marcello(2-0) Loss-Kurt McCune(1-1) T-2:31 A-9942
Actual Attendance: 4,283