OKLAHOMA CITY (AP) - Gwen Svekis hit a two-run homer to help Oregon defeat LSU 4-1 in a Women's College World Series elimination game Saturday night.

Megan Kleist (21-4), who got the save earlier in the day against Baylor, earned the win against LSU. She struck out nine with no walks in a five-hitter.

Alexis Mack had three hits and scored two runs for the Ducks (53-7), who will play defending national champion Oklahoma in the semifinals on Sunday. Oregon will need to beat the Sooners twice to advance to the championship series.

Shemiah Sanchez homered for LSU's lone run, and Allie Walljasper (18-6) took the loss for the Tigers (48-22) after giving up three runs and six hits in 2 2/3 innings.