Feb 3, 2008 - Super Bowl XLII New England Patriots vs. New York Giants.
As a sports player I can think of nothing worse than to have your first loss of the season be on the last game of the season.
The Patriots loss far more than just a Super Bowl, they loss something only one other team in all of NFL history has; they loss a perfect season.
It took the greatest play in Super Bowl history to make the greatest loss in sports history.
I still lose sleep over it. I wonder if any of the players do.