Northwestern State, along with LSU, will represent the state of Louisiana at the Corvallis Regional in Oregon.
The Tigers beat the Demons 9-5 earlier this season at Alex Box Stadium.
The Demons won their first ever Southland Conference Tournament championship Saturday night, beating New Orleans 7-5 at Constellation Field.
NSU's star infielder David Fry was named the Tournament's Most Valuable Player.
Fry was named a third-team All-American by Collegiate Baseball Magazine and earned Southland Conference Player of the Year honors.
He is Northwestern State's all-time leader in at-bats (841), doubles (74) and total bases (430).
The Northwestern State Demons:
No. 4 Seed
National rankings: Not ranked
Overall record: 37-22
Southland Conference: 18-12, 3rd place (Sam Houston State, Southeastern University)
Team pitching ERA: 3.33
Jerry Maddox: 7-3, 2.03 ERA, 80.0 innings pitched, 51 hits, 33 base on balls, 62 strikeouts
Jose Vasquez: 6-1, 2.17 ERA, 4 saves, 37.1 innings pitched, 30 hits, 12 base on balls, 32 strikeouts
Dan Hlad: 3-2, 2.73 ERA, 3 saves, 56.0 innings pitched, 45 hits, 23 base on balls, 50 strikeouts
Ridge Heisler: 7-2, 3.01 ERA, 89.2 innings pitched, 88 hits, 21 base on balls, 72 strikeouts
Team batting average: .271
David Fry: .336 batting average, 26 doubles, 3 triples, 12 home runs, 55 RBI
Kwan Adkins: 323 batting average, 6 doubles, 2 triples, 2 home runs, 24 RBI
Luke Watson: .293 batting average, 5 doubles, 2 triples, 2 home runs, 19 RBI
J.P. Lagreco: .289 batting average, 11 doubles, 4 home runs, 35 RBI
LSU and San Diego State start the day at 3 p.m., followed by Oregon State and Northwestern State at 9:30 p.m.
Both games are scheduled to air on ESPNU.
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