Max Johnson injury: North Carolina QB Max Johnson Suffers Injury in Loss to Minnesotabr br North Carolina quarterback Max Johnson was forced to leave Thursday night's game against Minnesota after suffering a severe leg injury in the third quarter.** The injury occurred when Johnson's leg became entangled while trying to avoid a sack. Medical staff evaluated the severity of the injury on the field before deciding to transport him to the locker room on a cart. Johnson's parents were visibly distressed in the stands as their son was helped off the field.