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The Joe Namath guarantee.....the Buffalo wide right....the freakin' Patriots in 2001....the Giants taking it to the freakin' Patriots in 2007....the Stillers upsetting Peyton Manning and the Colts in 2005....here are a bunch of very entertaining NFL playoff upsets over the years https://www.msn.com/en-us/sports/news/the-biggest-upsets-in-the-history-of-the-nfl-playoffs/ss-BBYKMPc?li=BBnb7Kz