For the first time since 2009, LSU has won its first game in the College World Series.
The Tigers scored two runs in the 8th to defeat Florida State 5-4, before 25,305 at TD Ameritrade Park in Omaha.
In 2009, the Tigers beat Virginia 9-5. LSU went on to beat Texas 2 games to 1 in the championship series.
LSU head coach Paul Mainieri said that first win is critical.
LSU lost its first games in Omaha in 2013 and 2015. The Tigers are now 2 wins, 4 losses in games played at TD Ameritrade Park.
LSU has won 17 games in a row. Earlier, Oregon State beat Cal State Fullerton 6-5, to win its 22nd straight game.
LSU and Oregon State play Monday night in a winner's bracket game in Omaha.