No. 2 Ohio State (7-0, 4-0 Big Ten) at Purdue (3-3, 2-1), 7:30 p.m. ET (ABC)

Line: Ohio State by 13½.

Series record: Ohio State leads 40-14-2.

WHAT'S AT STAKE?

The Buckeyes are the Big Ten's last remaining unbeaten team and need a win to stay atop the Big Ten East and in the hunt for a playoff spot. Purdue has won three straight including an upset of then No. 23 Boston College, and a win Saturday would give second-year coach Jeff Brohm the biggest of his tenure.

KEY MATCHUP

Purdue WR Rondale Moore vs. Buckeyes secondary. The record-breaking freshman has caused matchup problems for opponents all season and Brohm has found a variety of ways to deploy the speedy Moore. But Ohio State poses the biggest challenge he's faced.

PLAYERS TO WATCH

Ohio State: QB Dwayne Haskins Jr. has topped 400-yard passing in back-to-back games and leads the nation with 28 TD passes. He could have another big day against the conference's No. 11-ranked pass defense.

Purdue: David Blough. The fifth-year senior has played lights out over the last four games, going 110 of 161 (68.3 percent) with 1,573 yards, 10 touchdowns and two interceptions. He's also had two TD runs and caught a TD pass last week.

FACTS & FIGURES

Ohio State and Purdue haven't played since 2013. ... Coach Urban Meyer is 27-2 in road games since joining the Buckeyes in 2012. ... Purdue is 1-19 in its last 20 games against Top 25 foes. ... Ohio State's offense is ranked second in the Football Bowl Subdivision with 556.9 yards per game. ... Purdue hasn't won four straight since starting 5-0 in 2007. ... Buckeyes WR Terry McLaurin needs 118 yards to reach 1,000 in his career. When he achieves the feat, it would give the Buckeyes three active receivers with 1,000 career yards for the first time in school history. ... The last time Purdue hosted a team ranked this high was in 1999 when No. 2 Penn State hung on for a 31-25 in Drew Brees' junior season.

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