This was a shocking upset when the New York Giants Defeated the Green Bay Packers 37-20 in the 2011-2012 NFC Divisional round of the playoff on the way to their victory in super bowl 46 against the patriots for the second time in 4 years. The 2011-2012 Green Bay Packers have been the only team in nfl history to go 15-1 then lose their first playoff game, in other words, 15-1 and done.