Sports can be defined in a number of ways, but one word can be used to describe certain teams that overcome adversity to win and that is excellence.
Excellence is a trait that is not built in teams, but is earned.
Underdogs achieve excellence through hard work and determination to upset unbeatable favorites.
Upsets truly make us appreciate sports and how magical it is when a long shot team or individual achieves greatness through unfathomable feats.
Relive 10 of the greatest upsets in American sports history.