Five of the 10 highest-ranked teams in ESPN.com's most recent NFL Power Rankings lost in Week 2.
The San Francisco 49ers can make it six if they can upset the top-ranked New Orleans Saints on Monday night. Either way, the Power Rankings for Week 3 should feature changes near the top when it comes out Tuesday.
The chart shows how ESPN.com's four voters -- me, John Clayton, Paul Kuharsky and James Walker -- ranked teams last week. Red lettering reveals which teams lost in Week 2. Again, these are not new rankings. Those come out Tuesday.
The Chicago Bears' victory at Dallas came as a surprise to me, but this isn't the first time Mike Martz has breathed life into an offense early in a season. It happened in San Francisco, with J.T. O'Sullivan putting up good numbers for a while. O'Sullivan and the 49ers could not sustain their performance, however, and opposing defenses ultimately made San Francisco pay for favoring downfield passes without adequate pass protection.
The Bears have a better chance to sustain their offensive gains because Jay Cutler is more talented than O'Sullivan and, at least for a day, Martz seemed willing to settle for some shorter passes.
The reckoning: Seven games featured lower-ranked teams beating higher-ranked teams:
(28) Tampa Bay 20, (26) Carolina 7. The Bucs are 2-0 and the schedule was on their side.
(25) Denver 31, (21) Seattle 14. A couple bad throws by Matt Hasselbeck turned this game.
(22) Chicago 27, (8) Dallas 20. Martz has the Bears starting quickly, but will the early success last?
(17) Cincinnati 15, (3) Baltimore 10. I'm with Ray Lewis on the ticky-tack penalties protecting quarterbacks.
(15) Miami 14, (6) Minnesota 10. Brett Favre looks like a guy regretting his decision to return.
(10) Pittsburgh 19, (9) Tennessee 11. Giving Ben Roethlisberger a head start on October.
(11) New York Jets 28, (4) New England 14. Give the Jets credit for backing up Rex Ryan's bravado.
Still to play: "Monday Night Football" featuring the San Francisco 49ers and the New Orleans Saints.
My early favorite for the No. 1 spot: New Orleans. Let's see if the Saints get past the 49ers. If not, would you go with Green Bay or Indianapolis?