Fourth-ranked Ohio State listed quarterbacks Braxton Miller and Kenny Guiton as co-starters on the depth chart for Saturday night's Big Ten opener against No. 23 Wisconsin in Columbus.
Buckeyes coach Urban Meyer will wait to name a starter until he watches Miller in practices leading up to the game.
"Those decisions will be made later in the week," Meyer said during a Big Ten teleconference. "I think if (Miller) has a great week of practice, he will (start). I don't want to name him a starter yet because I don't know. I want to make sure I'm doing right by Kenny Guiton, so it's more complicated than that."
Guiton started the past two games and played most of a third game in place of Miller, who has a sprained knee. The senior made the most of the opportunity, throwing 12 touchdown passes this season and receiving back-to-back Big Ten offensive player of the week awards.
Last week against Florida A&M, Guiton set a school record with six touchdown passes, all in the first half of the 76-0 rout.
Meyer had hoped Miller would be ready to play in last week's final non-conference game, but the staff decided to give his injured knee one more week to heal.
Miller, a junior, was the Big Ten player of the year and finished fifth in the Heisman Trophy balloting last season.