GREEN BAY, Wis. - Aaron Rodgers and the Green Bay Packers should have been feeling satisfied.

With yesterday's 46-16 rout of the Oakland Raiders, the Packers brushed aside a playoff contender by halftime to win their 19th straight, moved a game away from clinching home-field advantage throughout the playoffs - and at 13-0, they kept the possibility of a perfect season squarely in sight.

Instead, Rodgers seemed concerned about the health of star wide receiver Greg Jennings, who left the game with an apparent left knee injury in the third quarter.

"Well, it didn't look very good," Rodgers said. "So we'll see what the MRI says [today]. And hopefully, we've got a bye wrapped up, so he really has close to 5 weeks before our [playoff] game."

Packers coach Mike McCarthy was more guarded, classifying the injury as a sprain and saying that it warranted further evaluation.

Jennings' injury put a damper on what was otherwise one of the Packers' most complete performances of the season. Rodgers threw for 281 yards with two touchdowns and an interception in less than three quarters' worth of work, Ryan Grant had two rushing TDs and Charles Woodson picked off a pass against his former team.

McCarthy still isn't interested in talking about the possibility of the Packers going 16-0, but his level of confidence is clear.

"[If we're] taking care of things and keeping our focus on improving the quality of play, I don't think we can be beat," McCarthy said. "You could have asked me that 6 years ago, I would have said the same damn thing. That's the way we think around here."

Rodgers got an early rest in the blowout, as backup Matt Flynn took over late in the third.

"This is the kind of game you want to play going into the playoffs," Rodgers said.

Carson Palmer threw for 245 yards with a TD and four interceptions for the Raiders (7-6), who looked like anything but legitimate contenders in the AFC West.

"I'm not going to let this team keep going backwards," coach Hue Jackson said. "The last 2 weeks, we haven't come close to playing or looking like the football team we've been."

Oakland was without injured running back Darren McFadden, along with wide receivers Jacoby Ford and Denarius Moore. And the Raiders made plenty of mistakes to help an opponent that doesn't really need it.

"You are not going to beat a high school team with the penalties and mistakes [like] the ones that we made," linebacker Aaron Curry said. "You make a lot of mistakes, you lose."

Things got out of hand so quickly that the Raiders tried a fake punt in the second quarter. As was the case for most things the Raiders attempted, it didn't work.