AUBURN, Ala. -- Drew Anderson had his second straight two-homer game, a pair of two-run shots, as Ohio State beat Auburn 6-2 on Saturday in the NCAA tournament.

The Buckeyes (43-19) hit four homers to force No. 4 national seed Auburn (41-20) into an elimination game with Clemson and advance to meet the winner Sunday.

Steve Caravati and Christian Snavely added solo blasts as three of Ohio State's first four hits off starter Arnold Hughey (6-6) were homers.

Mike Madsen (8-1) gave up runs in the first and second but didn't allow much else before running into trouble with one out in the ninth.

Madsen, who has won his last eight decisions, was lifted with runners on first and second. Matt Davis got Derek Sain to ground out to second and struck out Chuck Jeroloman looking for his 12th save.

Anderson's second homer, in the seventh, plated Brett Garrard, who led off with an infield single off reliever Cory Dueitt.

Caravati has also homered in both regional games, driving in 17 runs in seven postseason games. He also singled and was hit by a pitch.

Sain doubled twice for the Tigers while Scott Schade hit his first homer of the season, a solo shot in the second. Gamble doubled and singled as Auburn outhit the Buckeyes 8-7.

The Tigers' leadoff man, Sean Gamble, was thrown out at the plate in the seventh by leftfielder Wes Schirtzinger, who had entered the game to start the inning.

Ohio State has won five straight games, including a three-game run to capture the Big Ten tournament.

The Buckeyes have seven homers in the first two regional games.