OMAHA, Neb. (AP) - Alex Lange limited top-seeded Oregon State to two hits over 7 1/3 innings, and LSU ended the Beavers' 23-game winning streak with a 3-1 victory on Friday to set up a winner-take-all Bracket 1 final at the College World Series.
The teams will meet again Saturday, with the winner going to the best-of-three finals beginning Monday.
The Tigers (51-18), who avenged a 13-1 loss to the Beavers (56-5) on Monday, became the first team to knock off the Beavers since Southern California on April 29.
They did all of their scoring against national wins leader Jake Thompson (14-1). Max Engelbrekt relieved in the seventh after Josh Smith hit Thompson's first pitch of the inning into the right-field seats for a two-run lead.
Lange (10-5), the Chicago Cubs' first-round draft pick, ran into trouble in the third when he walked three batters and gave up a double. Only one more batter advanced past first against him, and he retired eight in a row before he turned the game over to closer Zack Hess with one out in the eighth. Hess retired the last five batters, four by strikeout, for his fourth save.
LSU opened the second inning with a double and two singles and led 2-0 when Beau Jordan's safety-squeeze bunt scored Zach Watson.
The Beavers got a run back in the third on a bases-loaded walk. They should have had another run score earlier in the inning when, with runners on first and second, Steven Kwan sliced a ball down the left-field line that bounced off the wall and was ruled foul. TV replays indicated it was a fair ball.
Oregon State did not protest, but national coordinator of umpires George Drouches said through an NCAA spokesman that crew chief Danny Collins should have called for a video review. Collins, who was working third base, made the original foul call. Kwan ended up popping out to shortstop.
The Beavers' two hits were their fewest since they had four in their season opener against Indiana.
BEAVERS TOUGH ON LEFTIES
Deichmann's double in the second inning ended an 0-for-24 drought for left-handed hitters in the CWS against Oregon State pitchers.
WALLOPING WATSON
LSU's Zach Watson had three hits for the second straight game, the first player to do that in the CWS since Florida's Richie Martin in 2015. Watson is 8 for his last 12 after going 0 for 4 against Florida State last Saturday.
ABOUT SATURDAY
Something for LSU fans to chew on before the winner-take-all bracket final: Since losing five straight games from May 6-13, 2016, Oregon State is 62-6 and has not lost consecutive games.