Texas A&M's Manziel could become the first freshman to win the award.
Manziel is the favorite to win college football's most famous player of the year award when it is presented Saturday night in New York. He would be the first freshman to win the Heisman and the first Texas A&M player since halfback John David Crow won the school's only Heisman in 1957.
Te'o is trying to become the first defense-only player to win a Heisman and the eighth player from Notre Dame. The Fighting Irish have had seven Heisman winners, tied for the most with Ohio State and Southern California, but none since Tim Brown in 1987.
Klein would be the first player from Kansas State to win the Heisman.