sentences:  After one year on the freshman squad, he asked the school's permission to continue practicing, but to not play, so that he could get himself into proper condition as well as to wait for the upperclassmen ahead of him to graduate.This made Alfson the first recorded redshirt in Cornhusker history, and likely the first in collegiate history - the inventor of "redshirting" - the Nebraska color without a number.Alfson's year of conditioning would pay off well, as he returned to become a three-year starter for Nebraska.