Arizona Cardinals beat Pittsburgh Steelers, 21–14

The Cardinals closed as 5.5-point underdogs and won outright. The betting market gave them a 32% chance.

It was the 2nd-biggest of 5 NFL upsets in 2007 Week 4, and the 26th-biggest of the 2007 season. It was Arizona Cardinals's only upset win of 2007.

Other NFL upsets in 2007 Week 4

1. Kansas City Chiefs 30, San Diego Chargers 16

   12-point underdog13% to winRecap
   Upset size12
2. Buffalo Bills 17, New York Jets 14

   3.5-point underdog36% to winRecap
   Upset size3.5
3. Cleveland Browns 27, Baltimore Ravens 13

   3.5-point underdog36% to winRecap
   Upset size3.5
4. Oakland Raiders 35, Miami Dolphins 17

   3.5-point underdog36% to winRecap
   Upset size3.5

More: Arizona Cardinals upsets · Pittsburgh Steelers upsets · all Week 4 upsets · how upset size works