Oklahoma Sooners athletic director Joe Castiglione will retire from his full-time role in the upcoming school year, according to a report from ESPN's Pete Thamel. Once a new athletic director is hired, Castiglione will remain with the athletic department in an "emeritus" role, where he will serve as an advisor to the athletic department.

Oklahoma athletic director Joe Castiglione. who has led the Sooners since 1998, will retire from his full-time responsibilities during the upcoming school year, according to ESPN. Castiglione will retain his title as athletic director emeritus whenever Oklahoma places his successor into office.

Castiglione is entering his 28th year at Oklahoma, making him the longest-tenured athletic director in major college sports.