Pittsburgh Steelers upset Buffalo Bills, 29–24

The Steelers closed as 9.5-point underdogs and won outright.

It was the 2nd-biggest of 6 NFL upsets in 2004 Week 17, and the 4th-biggest of the 2004 season. It was Pittsburgh Steelers's only upset win of 2004.

Other NFL upsets in 2004 Week 17

1. Cleveland Browns 22, Houston Texans 14

   10-point underdogRecap
   Upset size10
2. New Orleans Saints 21, Carolina Panthers 18

   7-point underdogRecap
   Upset size7
3. San Diego Chargers 24, Kansas City Chiefs 17

   6.5-point underdogRecap
   Upset size6.5
4. Washington Commanders 21, Minnesota Vikings 18

   4-point underdogRecap
   Upset size4
5. St. Louis Rams 32, New York Jets 29

   3.5-point underdogOTRecap
   Upset size3.5

More: Pittsburgh Steelers upsets · Buffalo Bills upsets · all Week 17 upsets · how upset size works