University of Idaho Athletics

Sylvester “Sib” Kleffner earned three letters for the Vandal football team and three more for the baseball team from 1922-26. Kleffner was known as a powerful runner in Idaho’s backfield. He helped the team to a third-place finish in the Pacific Coast Conference in 1923 when the Vandals went 5-2-1 and outscored their opponents 164-26.