Vikings take a loss as two of Favre turnovers result in touchdowns for Pittsburgh
The Minnesota Vikings would have gone 7-0 for the first time since 2000, had they not lost at Pittsburgh 27-17.
Brett Favre threw an interception in the final minute, and Keyaron Fox ran it back 82 yards for the Steelers' winning touchdown.
Pittsburgh also scored on a Favre fumble in the fourth quarter. LaMarr Woodley ran it back 77 yards. Favre threw for 334 yards, completing 34-51 passes. Percy Harvin scored on an 88-yard kickoff return for the Vikes.
The Chicago Bears got crushed at Cincinnati, 45-10.
Carson Palmer threw five touchdown passes, and ex-Bear Cedric Benson ran for 189 yards and a touchdown.
Devin Hester caught eight passes for 101 yards and a score for the Bears. Jay Cutler was intercepted three times, as Chicago fell to 3-3.
That leaves the Packers as the only division team which won Sunday.
At 4-2, they moved ahead of the Bears in the standings. Detroit had its bye, and is in last place at 1-5.
Elsewhere, Racine County native Tony Romo threw for three touchdowns as his Dallas Cowboys topped Atlanta 37-21. Romo, of Burlington, completed 21-29 passes for 311 yards.
And former Packer Darren Sharper scored on a 42-yard interception for New Orleans, in its 46-34 win at Miami.