Ohio State Buckeyes defensive end Nick Bosa had surgery to fix a core muscle injury and there is no timetable for his return, coach Urban Meyer said on a radio show Thursday.
Bosa, who suffered the injury in the third quarter of the Buckeyes' victory over TCU on Saturday, will not be on the field this weekend against Tulane.
The All-American standout has four sacks and 14 total tackles through three games this season.