Ohio State offensive tackle Zen Michalski, who was carted off late in Saturday's win over Nebraska, is trending not to play this week at No. 3 Penn State following the injury, coach Ryan Day said Wednesday.
Meanwhile, safety Lathan Ransom remains on track to return Saturday, according to Day.
Ransom, who is tied for the team lead with two forced fumbles and is fourth on the Buckeyes with 26 tackles, missed the Nebraska game with an undisclosed injury.
Michalski made his first start in place of Josh Simmons, who suffered a season-ending left knee injury in Ohio State's Oct. 12 loss at Oregon. After Michalski suffered a lower-body injury in the fourth quarter, Ohio State moved Donovan Jackson from left guard to left tackle.
Day said earlier in the week that a determination on whether Michalski starts at Penn State would be made after he's cleared to return. Jackson would be the other option to start at left tackle.
Offensive coordinator Chip Kelly said Jackson "could play anywhere along the offensive line" and is "extremely confident" in the senior, a two-time first-team All-Big Ten guard. The Buckeyes had only 64 rushing yards against Nebraska, less than half of their total in any other game, and a season-low 21 points.