LANDOVER, Md. — With the NFC East title on the line, rookie quarterback Robert Griffin III had a 10-yard touchdown run and rookie runningback Alfred Morrins ran for two scores to give the Washington Redskins a 28-18 win over the Dallas Cowboys Sunday night to clinch the NFC's final playoff spot and the No. 4 seed for the playoffs.
Tony Romo threw interceptions on each of Dallas' first two possessions before connecting with Jason Witten for a 9-yard touchdown pass on the team's third drive. He was also picked off on a late drive that turned into a Redskins touchdown.
The Cowboys were seeking the first division title and playoff berth since 2009. The Redskins, meanwhile, earned their first trip to the postseason since 2007 — and first NFC East championship since 1999. Washington finished in last place each of the past four seasons.
Washington entered the day on a six-game winning streak and with a 9-6 record, while Dallas came in 8-7.
The victory over Dallas made Washington the first club since the 1996 Jacksonville Jaguars to get to the playoffs after opening 3-6.
It was a win-or-go-home game moved into prime time to mark the end of the NFL's regular season: Washington now hosts the wild-card Seattle Seahawks in a first-round game next Sunday afternoon.
Griffin's scamper with a little more than 3 minutes left in the third quarter capped a nine-play, 82-yard drive and made it 14-7. Dallas cut the lead to four points on Dan Bailey's 48-yard field goal 51 seconds into the fourth quarter.
RG3, wearing a heavy black brace on his mildly sprained right knee, faked a handoff to rookie running back Alfred Morris, who had six carries for 41 yards on the possession — helping him break Clinton Portis' franchise record for rushing in a season.
To that point, Morris had a career-best 141 yards on 21 carries, including a 17-yard touchdown run in the second quarter. Entering the fourth, Morris was up to 1,554 yards for the season. Portis gained 1,516 in 2005.
The game also included Redskins kicker Kai Forbath's first missed field-goal try in 18 career attempts.
After his early miscues, Romo got going on his third drive, a 13-play, 89-yard journey that lasted more than 7 1/2 minutes. It ended with Dallas barely beating an expiring play clock on third-and-goal from the 9, then Romo scrambling around in his trademark fashion before finding Witten in the end zone with about 8 minutes left in the second quarter.
Romo went 4 for 4 for 58 yards on the drive. Witten's first catch of the game, earlier in that possession, gave him 800 for his career, allowing him to join Tony Gonzalez (1,237) and Shannon Sharpe (815) as the only tight ends with at least that many.