When the NFL schedule came out months ago, Sunday night's matchup between the Dallas Cowboys and Green Bay Packers at Lambeau Field (8:20 pm Eastern, NBC) looked like a possible preview of a conference championship game.

Today, not so much. Because while Green Bay has weathered multiple injuries to get to 5-3 and the top of the NFC North, Dallas has devolved into the biggest disappointment in the NFC.

And now the Cowboys must soldier forward without starting quarterback Tony Romo, who got his collarbone broken in a loss to the Giants two Monday nights ago.

So in a game that, on most other occasions, would probably be lined at right around a field goal, instead BetJamaica.com is chalking the Packers at -7.5. Green Bay is also moneylined at -350, with Dallas getting +290 to pull the outright upset.

And the total has been bet up from 44.5 to 45.5.

The Packers looked like they were in a bit of trouble just a week ago, battling numerous injuries, losing three of four games, and heading to New York (alright, New Jersey) to take on a very good Jets team that was coming off a bye week. Luckily for Green Bay, the Jets looked like they were half asleep, and the Pack came away with a 9-0 shutout victory. In doing so, Green Bay took over first place in the NFC North.

Dallas, on the other hand, started 0-2 this season, but looked like they might have recovered after winning a game at Houston. Instead, the Pokes have proceeded to lose four straight games, and looked bad in getting beat at home last week by a 3-4 Jacksonville outfit 35-17.

So the Cowboys are 1-6, working with their backup quarterback, and may soon be shopping for a new head coach.

These two teams have met each of the last three seasons. Last November the Packers outrushed Dallas 105-61 and forced three Cowboys turnovers in winning 17-7 at Lambeau.

Dallas is actually outgaining opponents this season by a 381-327 YPG margin, although they're also getting outrushed 122-81. And their -5 turnover ratio hasn't helped, either.

Green Bay, meanwhile, is getting outgained this year 341-336, and outrushed 124-97. But the Packers have managed to post a +2 turnover ratio, thanks in good part to some thievery on defense.

The Cowboys have gone 5-2 on the betting totals this year, as their games have averaged 49 points per. The Pack, on the other hand, are 2-6 on the totals, and their games have averaged 39 points.

BetJamaica.com sent Dallas off this year with a regular-season wins OVER/UNDER of 10. So they've got to go 9-0 from here on out just to push their total. Which is not going to happen.

Green Bay went off with a wins O/U of 9.5 (over -200/under +160). So the Packers need to win five of their last eight games to go OVER their number.