No two AFC teams have met more in the postseason than the Pittsburgh Steelers and Denver Broncos. Sunday will mark their seventh postseason meeting, with each team having won three times.

Each of the last two times these teams have met, the winner went on to win the Super Bowl.

Both teams enter the playoffs with interesting situations at quarterback. The Broncos, of course, have Tim Tebow, whose insertion into the starting lineup propelled them to a division title, despite his being largely ineffective as a passer.

The Steelers, on the other hand, are dealing with an ankle injury for their Super Bowl-winning quarterback, Ben Roethlisberger, as well as injuries to Rashard Mendenhall and Mewelde Moore that have knocked that pair out of action.

Roethlisberger will play in the hopes of regenerating past postseason magic. He is 10-3 career as a starting in the postseason. According to the Elias Sports Bureau, that’s the third-best record for a starting quarterback with at least 10 postseason starts, trailing only Bart Starr and Jim Plunkett.

But Roethlisberger injured his ankle late in the season, and since then has been susceptible to the pass rush. When facing five or more rushers over the last two games, Roethlisberger is completing less than 30 percent of his passes, with a QBR of 6.0.

That plays into what the Broncos like to do defensively, as they sent five or more rushers on nearly half (46 percent) of opponents dropbacks this season, the third-highest rate in the NFL.

On offense, the Broncos, who led the NFL in rushing this season, and were tied with the Houston Texans for the most rush attempts, will likely look to establish their run game.

Denver was especially effective running out of the shotgun since Tebow became starter.

Since Week Seven, the Broncos have averaged 6.0 yards per carry on rushes out of the shotgun, and just 4.0 on snaps from under center. Twelve of their 17 rushes of at least 20 yards in that time have come out of the shotgun, including nine on option plays.

That has helped make up for an anemic passing game. Tim Tebow completed just 46.5 percent of his passes this season, the worst mark by a qualifying quarterback since Akili Smith in 2000.

According to the Elias Sports Bureau, Tebow will become the first quarterback to start a playoff game after completing less than half of his regular-season passes since Scott Zolak of the Patriots in 1998. The last to do it before that was Dallas’ Steve Beuerlein in 1991.

Nearly one of every three passes that Tebow threw this season (31.4 percent)fell incomplete due to an overthrown or underthrown pass, the highest mark in the league.

Passing against the Steelers defense is already a tall order, as the Steelers allowed only 172 pass yards per game, the best mark in the NFL, to go along with their league-best 14 points per game and 272 yards per game allowed.