Some of the best moments in sports are the monumental upsets that rarely occur in big moments.
If you like rooting for the underdog, you don't often have reason to cheer.
But sometimes, special teams and athletes can pull off huge surprises.
We'll take you through the biggest upsets over the years, from 1969 to 2012.
1969 — New York Jets 16, Baltimore Colts 7
Jets quarterback Joe Namath guaranteed a victory in Super Bowl III over the Baltimore Colts, but absolutely no one was picking the AFL champions to win over the Colts, who had dominated the league that year.
The Jets scored 16 unanswered points from the start of the game, and put to bed any claims that the AFL was inferior to the NFL.
1980 — USA 4, USSR 3
The 1980 "Miracle on Ice" is still the top upset in sports history, and it seems hard to believe anything could ever surpass it.
1983 — North Carolina State 54, Houston 52
Houston had torched the country all year long, going 31-2, and were led by two future NBA legends in Clyde Drexler and Hakeem Olajuwon.
The Cougars had N.C. State on the ropes in the second half, but Sidney Lowe led the Wolfpack to a late-game surge, and Dereck Whittenburg's alley-oop to Lorenzo Charles won N.C. State a national championship.
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