Saturday night (8 p.m. ET, ESPN & ESPN App), Oklahoma quarterback Baker Mayfield surely will be named the winner of the 83rd Heisman Trophy -- a moment that will mark the culmination of one of the most improbable rises in college football history.
Mayfield didn't start the season opener of his high school junior year.
He walked on at Texas Tech.
And he transferred to Oklahoma without invitation, much less a scholarship.
Yet all along the way, Mayfield defied the odds, utilizing unrivaled self-confidence and unmatched competitive spirit. Tom Herman, coach of the rival Longhorns, calls Mayfield college football's "ultimate competitor.