LINCOLN, Neb. -- Nebraska will play its final game of the season with a new quarterback behind center.

Husker head coach Scott Frost confirmed during a media briefing on Monday that Martinez will be unavailable for Friday's game against the Hawkeyes after injuring his shoulder against Wisconsin.

Backup quarterback Logan Smothers played the final series of the second quarter before Martinez returned for the entirety of the second half. It was the fifth game of the season for Smothers, meaning he can no longer redshirt this season, according to NCAA rules. All of Smothers' action has been in a backup capacity this season.

Smothers joined the squad last season and received a free year of eligibility, like all other players. If he had played in four or fewer games this season, he could redshirted this season and remained a freshman eligibility-wise entering his third season next year.

With Martinez out, Frost said both Smothers and true freshman Heinrich Haarberg will get reps this week in practice.

Martinez was not available for comment at Monday's press conference.

A four-year starter, Martinez could return for one more season next year. Neither Frost nor Martinez has commented on that possibility.