The last time Green Bay and Chicago met at Soldier Field, the Packers booked a berth in Super Bowl 45 and the Bears impressive playoff run was over. Two of the National Football League\'s oldest and most storied rivals meet once again in one of 15 games in week three of the 2011-12 season on Sunday. In last season\'s NFC championship game, Green Bay beat Chicago 21-14 to earn its first trip to the Super Bowl in 13 years.The defending Super Bowl champion Packers seek to fluster Bears quarterback Jay Cutler and a offence that stumbled badly last week. Chicago, who gave up a league-worst 56 sacks last year, have already allowed a league-leading 11 in just one win and one loss this season.Cutler was sacked six times in last Sunday\'s 30-13 loss to New Orleans and he now faces an unbeaten Packers team that has seven sacks and got to him 11 times in three contests last season.Green Bay also has problems on defence. Their pass defence took a hit when three-time all pro safety Nick Collins suffered a season-ending neck injury in the fourth quarter of last Sunday\'s 30-23 victory.\"It\'s definitely a punch to the gut,\" said Green Bay safety Charlie Peprah. But on offence it has been a different story. Green Bay\'s Aaron Rodgers, who is one of the most spectacular quarterbacks in the league, has looked sharp, completing 70.8 percent of his passes for 620 yards and five touchdowns.Over the years the Bears have done a good job of keeping him in line. In five games against Chicago since 2009, Rodgers is averaging 230.6 yards with three touchdowns and four interceptions. Like the Packers, the New England Patriots seem to be able to score points at will this season. But they will be going up against Buffalo in a battle of undefeated teams on Sunday. The Bills have lost 15 straight to the Patriots. The last time they beat New England was a 31-0 rout on opening day in 2003. The Dallas Cowboys face the undefeated Washington Redskins on Monday night in another of the NFL\'s most storied rivalries. Cowboys injured quarterback Tony Romo is doubtful but if he does play the Redskins will keep the pressure on and if he steps out of the protection of the pocket, they will make him pay.Like Romo, the status of Philadelphia Eagles quarterback Michael Vick is unclear for Sunday. Vick was forced to leave in the second half after he suffered a concussion in a 35-31 loss at Atlanta last Sunday. The Eagles insist Vick doesn\'t have \"a whole lot of concussion symptoms,\" but said he would undergo further testing.Giants coach Tom Coughlin knows what to expect. \"I expect Michael Vick will play and if he can play, I am sure he will,\" Coughlin said. The Eagles hope to continue their domination of New York, having won six straight against the Giants.