Crenshaw, son of an Austin, Texas attorney, is a sophomore at the University of Texas. Last year, as a freshman, he won the NCAA individual championship and led Texas to the team title (SI, July 5, 1971). He hints he might turn pro after this year, and if he does it will be fun to watch. Labron Harris, golf coach at Oklahoma State, whose son Labron Jr. led the U.S. Open after the first round last June, says, " Crenshaw is head and shoulders above any other amateur. He's another Jack Nicklaus or Bobby Jones. He's in that class."