When you have made it this far in the season, you are less concerned with homefield advantage and more concerned with momentum and capitalizing on the opportunity at hand.

            As we approach Championship Sunday in the 2011 NFL season, the Baltimore Ravens and New York Giants face tall orders in going on the road to try and earn a trip to Super Bowl XLVI in Indianapolis.

            It is highly unlikely that both will win Sunday, at least based on history. Only twice since the AFL-NFL merger in 1970 have both visiting clubs come away victorious in this round, in the 1992 and 1997 seasons.

            Both teams are underdogs, although New York only slightly at 2.5 points. The Giants have been here before, winning conference title games on the road in 2007 at Green Bay and 1990 in San Francisco to thwart the 49ers’ three-peat bid.

            But the tricky one will be the Ravens, 7.5-point underdogs traveling to Foxborough, where they did win in the playoffs in 2009 but have lost their other six meetings with the Patriots.

            In three of the last five years, both home teams have won in this spot, with the exceptions being the aforementioned 2007 Giants and last year’s Packers in Chicago. Prior to 2006, at least one road team had won in each of the preceding eight years, including the double dip in 97.

            The Ravens were one of those teams, shutting down the potent Raiders attack in the Black Hole in the 2000 AFC title game. But even with Trent Dilfer under center, that defense was one of the best of all time and was fortunate enough to play the majority of the game against Bobby Hoying after Rich Gannon broke his collarbone.

            Baltimore matches up well with New England, as evidenced by the fact that in their previous four meetings (albeit 1-3) the Ravens have not lost a game by more than six points. The Patriots have yet to beat a team with a winning record this year, including last week’s demolition of 9-9 Denver. So this game, despite New England’s lethal offense, could still be close.

            Big Blue is a very dangerous team right now and the 49ers saw flashes of that first-hand back in Week 10. San Francisco prevailed with a late defensive stand, 27-20, but the Giants moved the ball efficiently in that game, outgaining the 49ers by nearly 100 yards.

            All four teams are capable of winning two more games and a Lombardi Trophy, but the road teams are especially up against it. For the first time since the league expanded the playoff field to 12 teams, the first seven games of the postseason were won by the home team until the Giants upended the Packers at Lambeau Field on Sunday.

            New England and San Francisco are both 8-1 at home this season, and those two losses were suffered in the final seconds or overtime. The Giants are New England’s lone home blemish, going ahead for good with 15 seconds to play, 24-20, while the 49ers fell to the Cowboys, 27-24, in overtime.

            Odds are one road team will emerge victorious Sunday, based on a combination of history, matchups, and momentum. Many people would assume that team would be the Giants because they seem to be in full 2007 mode right now, but the Ravens and 49ers, led by a pair of Harbaughs, don’t figure to go quietly either.