Iowa State quarterback Jacob Park will not play against No. 3 Oklahoma on Saturday for undisclosed medical reasons.

The school announced Friday that Park is taking a leave from the team to work through personal health issues. He remains a member of the squad.

Iowa State coach Matt Campbell is not certain of a timeline for Park’s return, and said he cannot discuss issue. Campbell said Iowa State is focused on “supporting one another in difficult times.”

Park has completed 62 percent of his passes and has nine touchdown passes and five interceptions this season.