"Klay's impact not only as a student-athlete at Washington State, but also as a three-time world champion with the Golden State Warriors, is most deserving of this recognition," Washington State athletic director Pat Chun said in a statement. "There has only been one basketball jersey retired in WSU history and on Jan. 18 we will add another as the Klay Thompson No. 1 will take its rightful place in WSU immortality.