COLUMBUS, Ohio (AP) — Dwayne Haskins Jr. threw for 304 yards and five touchdowns in the first half and No. 4 Ohio State beat Tulane 49-6 on Saturday to mark coach Urban Meyer's return to the sideline following a three-game suspension.

Haskins was nearly flawless, completing his first nine passes on the way to a 21-for-24 effort before giving way to backup Tate Martell in the second half.

Haskins, a third-year sophomore, is among the nation's leaders in touchdown passes with 16 through the first four games and is on track to eclipse J.T. Barrett's school record of 35 set last season.

Meyer missed the blowouts of Oregon State and Rutgers, then sat in front of his TV nervously at home as the Buckeyes pulled away from then No. 15-TCU in the second half last week to win 40-28. Ryan Day, the co-offensive coordinator/quarterbacks coach, temporarily handled sideline coaching duties.

Parris Campbell caught Haskins' touchdown passes of 14 and 37 yards in the first quarter. Binjimen Victor, Terry McLaurin and Austin Mack also caught first-half scoring throws. The prettiest might have been the last touchdown, a perfectly placed back-shoulder 14-yarder on which Mack made a falling-down grab.

Campbell, a fifth-year senior, had a career day, catching eight passes for 147 yards and the pair of scores.