Whether Indiana quarterback Michael Penix Jr. plays when Ohio State visits on Saturday will be a game-time decision.

Penix, a redshirt freshman, had started the first two games for the Hoosiers as they opened with victories over Ball State and Eastern Illinois.

Coach Tom Allen told reporters Thursday morning that Penix is “working through some things right now.”

Allen declined to reveal details of the injury.

“It's not a long-term thing,” Allen said, “so we're trying to work through it, get it rehabbed.”

Penix practiced during the week. If he is unable to play against the Buckeyes, redshirt junior Peyton Ramsey will start.

Ramsey started last season for the Hoosiers but lost the starting job to Penix in preseason training camp in August.

Ramsey completed 26 of 49 passes for 322 yards and three touchdowns without an interception at Ohio State last season. The Buckeyes prevailed, 49-26, and have not lost to the Hoosiers since 1988.

Despite uncertainty over the Hoosiers’ starter, Ohio State coach Ryan Day said later Thursday that his team’s preparation hasn't change. They had game plans for both quarterbacks.

“Nothing changes,” Day said. “I don't really know how it's all going to play out. Even if somebody is healthy, after the second play, they could go down. So you have to be ready for both and have a plan for both.”

Day acknowledged that the two offer different skill sets.

Penix is considered a more agile runner who has a knack for big plays as a passer. Ramsey is an efficient thrower. As the starter last season, he completed 66 percent of his passes, tied for second-best among Big Ten quarterbacks behind Dwayne Haskins Jr.

“Ramsey's a good player,” Day said. “We've seen that before. He played good against us last year and Penix is a young talented guy.”

jkaufman@dispatch.com

@joeyrkaufman