"I think we executed a little bit better. We tried to step up," Tebow said. "We knew it was win or go home. This team wanted to fight. We wanted to play another game."
These two teams had played the first ever regular season overtime game on Sept. 22, 1974, in Denver. Now, they played the first non-sudden death playoff game in history. The new rules called for both teams to get the ball in the extra period providing there wasn't a touchdown by either the offense or defense.
Tebow took care of that in a hurry.
Making his first appearance in the playoffs after going 7-4 as Denver's starter, Tebow outdueled Roethlisberger, a two-time Super Bowl winner who fell to 10-4 in the playoffs.
The Broncos snapped a three-game losing streak that had many wondering if they were even worthy of their first playoff in six seasons, and it kept the Steelers from their 34th playoff win, which would have broken a tie with the Cowboys for the most ever.
Tebow led Denver to 20 second-quarter points — they had scored just 13 in the quarter in his 11 starts — but a 20-6 halftime lead didn't last long.
Receiver Mike Wallace had a 1-yard TD run, Shaun Suisham kicked a short field goal and Jerricho Cotchery grabbed a 31-yard TD pass with 3:48 left in regulation to tie it.
The Steelers were nearing field goal range in the final minute of regulation but the Broncos sacked Roethlisberger three times on that final drive, forcing a fumble the quarterback recovered.
"We were moving it and we had a shot," Roethlisberger said. "Someone got, it felt like a finger, on the ball and knocked it out. After that, you're trying to throw a 70-yard Hail Mary and that's hard."
Pittsburgh caught a break in the second half when the Broncos thought they had another takeaway inside the Steelers' 20-yard line, but an errant whistle negated the turnover and the Steelers capitalized with an 87-yard TD drive to pull to 20-13.
Denver's decision to defer upon winning the first-half coin toss started to look like a bad decision when Roethlisberger drove the Steelers to two quick field goals and the Broncos managed just 8 yards in the first quarter.
The Broncos' bugaboo has been the second quarter, too, where they scored just 13 points in Tebow's 11 starts, and things started off ominously when his top target got hurt on the first snap of the second quarter.
Linebacker James Harrison's low tackle sent Decker out with a left knee injury, and the hard hit also broke up his 21-yard catch, which would have marked Tebow's first completion.
As Decker — whose girlfriend, country singer Jessie James, performed at halftime — hobbled to the locker room, Tebow hit Thomas for a 51-yard gain down the left sideline, then found Eddie Royal for a 30-yard touchdown toss that gave the Broncos a 7-6 lead.
That was Denver's first touchdown drive in 22 possessions.
Thomas' 58-yard reception set up Tebow's 8-yard dart into the end zone that made it 14-6.
The Broncos dialed up the pressure on Roethlisberger and rookie safety Quinton Carter's interception at the Pittsburgh 18 set up Matt Prater's first of three field goals, putting them up 17-6.
Roethlisberger was picked off on his next throw by Andre' Goodman, but that interception was negated by Elvis Dumervil's offside penalty. After a punt, however, Tebow connected with tight end Daniel Fells for 40 yards to the Steelers 25-yard line, setting up Prater's second short field goal that gave Denver a 20-6 halftime lead.
The Steelers were driving for a score just before the break when a bad snap by Legursky lost 23 yards and took them out of field goal range.
This was just the Broncos' second playoff win since Elway retired following his second straight Super Bowl triumph in 1999, and their first since Jan. 14, 2006, when the Broncos handed Tom Brady his first playoff loss.
The Broncos lost to the Steelers the following week in a watershed game that sent both franchises on divergent paths. The Steelers won two Super Bowls and narrowly missed a third in a 31-25 loss to Green Bay in last year's Super Bowl, and the Broncos went six years without making the playoffs.
Notes: This was the first OT playoff game since the Saints beat the Vikings 31-28 in the NFC championship on Jan. 24, 2010.
Follow AP Pro Football Writer Arnie Stapleton on Twitter: http://twitter.com/arniestapleton
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