Here are some of the key numbers and players to watch in today's matchups between San Diego and Indianpolis and the Giants and Cowboys.
Here is a look at Sunday's playoff matchups by the bumbers:
SAN DIEGO AT INDIANAPOLIS
The Colts had winning streaks of seven and six games this season.
After starting the season 1-3, the Chargers went 10-2 in their final 12 games.
While known for their offense – they scored 30 or more points eight times – the Colts defense is what has made them so impressive this year. Indianapolis has allowed 17 or less points nine times this season and never allowed more than 25 points in any game.
The Chargers allowed 17 points or less 10 time, including the final six games of the regular season. They kept that up in the wild card round, allowing the Titans just six points.
The Colts were second only to the Patriots with 357 first downs.
No team was better on converting third downs that the Colts, who made good on 49.3 percent of their chances. On the flip side, opponents converted on 45.2 percent of third downs, which ranked 30th in the league.
The Colts outgained their opponents by almost 1,300 yards. Their 5,739 offensive yards ranked fifth in the league, while the 4,475 yards allowed was third best.
Despite being 11-5, the Chargers allowed more yards (5,124) than they gained themselves (5,044).
The Chargers were the best team in the league in giveaway-takeaway ratio with a plus 24, including a league-best 30 interceptions. Cornerback Antonio Cromartie led the league with 10 interceptions.
The Chargers allowed opposing kickers just 72 points – 39 on field goals and 33 on extra points.
Kickers against San Diego attempted just 19 field goals and missed six of them.
It's been pretty easy for opponents to complete passes against the Indy defense. The team ranked 30th in opponent completion percentage, allowing teams to complete 65.3 percent of their pass attempts.
The Colts tied for second in the NFL with 54 touchdowns and were third with 19 rushing TDs. They also finished second for least touchdowns allowed (31) and second-least passing TDs (16).
In the second and third quarters of games, the Colts outscored their opponents 264-108.
San Diego outscored opponents 119-47 in the first quarter this year.
The Chargers were fifth in the league in points scored (412) and fifth best in least points allowed (284).
* The Colts were the only team to have three players score 10 or more touchdowns – Joseph Addai (15), Dallas Clark (11) and Reggie Wayne (10).
Of the Chargers' 41 offensive touchdowns, 27 of them were scored by Tomlinson (18) and Antonio Gates (9).
With Marvin Harrison injured most of the season, Wayne stepped up with 104 catches for 1,510 yards – more receptions than the next two Colts players combined.
Tomlinson got off to a slow start in 2007, but finished with 375 touches (315 runs and 60 receptions) for 1,929 yards and 18 TDs.
Tomlinson isn't the only threat in the backfield. While L.T. averaged 4.7 yards a carry, backups Michael Turner (4.5) and Darren Sproles (4.4) weren't too shabby themselves.
The Chargers tied for second with eight return touchdowns – behind only the Vikings with nine.
Peyton Manning had another spectacular season — averaging almost two yards more per pass attempt (7.57) than opposing QBs (5.88) and having twice as many TD passes (32 to 16).
NEW YORK GIANTS AT DALLAS
The Cowboys scored 27 or more points in 11 of their first 13 games.
Dallas had winning streaks of five and seven games in 2007.
After starting the season 0-2, the Giants ran off six straight wins before going 4-4 in the second half of the season.
No team picked up more first downs via penalty (35) than the Giants.
The Cowboys' 46 quarterback sacks were the third highest total in the league and more than half of those came from DeMarcus Ware (14) and Greg Ellis (12.5).
Plaxico Burress had twice as many touchdowns (12) as any other Giants player.
Although Brandon Jacobs had by far the most rushing attempts (202), he scored fewer rushing touchdowns than Reuben Droughns (6) and had only one more than Derrick Ward (3) despite having 80 more rushing attempts.
The Cowboys had a pair of 1,000-yard receivers in Owens (81-1,355-15) and Witten (96-1,145-7).
If the Cowboys have a weakness, it might be in kick and punt coverage. Their 11.6 yard opponent punt return average was 29th in the league.
Opposing kickers made just 11 of 18 field goal attempts from beyond 40 yards, while the Giants were 8-for-8.
Whether Jessica Simpson is allowed in the stadium or not, Tony Romo lived up to his preseason hype by throwing 36 touchdowns and having a passer rating of 97.4 – opposing QBs had as many interceptions (19) as touchdowns and a passer rating of 75.1.
Eli Manning tied for the most interceptions (20) of any quarterback in the league, which explains his passer rating of just 73.9.
Brad Johnson attempted just 11 passes all season as Romo's backup. Manning's backups threw just 15 passes.