Redskins 28, Cowboys 18
Rookie Alfred Morris ran for 200 yards and three touchdowns as host Washington clinched the NFC East title with its seventh consecutive victory.
Robert Griffin III was 9-of-18 for 100 yards but rushed six times for 63 yards and a score for the Redskins (10-6), who captured their first division crown since 1999. Washington will host Seattle in a first-round playoff matchup next Sunday.
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Tony Romo completed 20 of 37 passes for 218 yards and two touchdowns but threw three interceptions for Dallas (8-8), which has lost the regular-season finale with the division title on the line each of the last two seasons.
The game was scoreless after one quarter as Redskins kicker Kai Forbath's 37-yard field-goal attempt with 6:59 remaining hit the right upright. Dallas fared no better in the period as Romo was intercepted on each of the Cowboys' first two possessions, with both picks occurring in Washington territory.
Dallas took the lead with 7:59 left in the second, when Romo connected with Jason Witten for a 9-yard touchdown on third-and-goal despite the fact the play clock appeared to expire before the ball was snapped. The Redskins answered on their next possession as Morris scored on a 17-yard run and took a 14-7 lead when Griffin found the end zone from 10 yards out with 3:10 to play in the third.
Following a 48-yard field goal by Dallas' Dan Bailey in the first minute of the fourth, Morris ran for a 32-yard touchdown to make it 21-10. The Cowboys cut the deficit to three as Romo threw a 10-yard TD pass to Kevin Ogletree and hit Dwayne Harris for the two-point conversion with 5:50 on the clock.
But Romo was intercepted a third time by Rob Jackson with three minutes remaining, and Morris sealed the win with a 1-yard TD run with 1:09 to play.
GAME NOTEBOOK: Dallas WR Miles Austin suffered a left ankle injury in the first half but returned after halftime. Fellow WR Dez Bryant exited in the fourth quarter with an apparent back injury. ... The game was penalty-free until the Cowboys were called for holding with 8:59 remaining in the fourth quarter. The penalty was declined by Washington as LB London Fletcher sacked Tony Romo for an 18-yard loss on the play. ... Morris finished the season with 1,612 yards, breaking the franchise record previously held by Clinton Portis, who was in attendance.
Seahawks 20, Rams 13
Wilson tied Peyton Manning for the rookie record with his 26th touchdown pass, a 10-yard toss to Michael Robinson that gave Seattle (11-5) a 13-10 lead with 2:16 left in the third quarter, and he drove the Seahawks 90 yards in 10 plays and scrambled for the go-ahead score with 1:45 left.
The win didn't end up affecting Seattle's playoff seeding, as San Francisco won Sunday to clinch the NFC West title and lock the Seahawks into the No. 5 seed. Seattle will travel to face either Washington or Dallas in the first round next week.
The Rams (7-8-1) drove to the Seattle 29-yard line in the final minute, but Richard Sherman - who had his suspension for testing positive for performance-enhancing drugs overturned on appeal Thursday - intercepted a Sam Bradford pass to the end zone to seal it.
Bradford was 25-of-42 for 252 yards with a touchdown and an interception. He finished the season with 3,702 passing yards, surpassing his previous career high of 3,512 set in 2010.
GAME NOTEBOOK: Seahawks RB Marshawn Lynch rushed for 100 yards on 18 carries. His 10 100-yard games tied Vikings RB Adrian Peterson for the most in the NFL this season. ... Rams RB Steven Jackson rushed for 52 yards on 11 carries to become the sixth NFL player with eight consecutive 1,000-yard seasons. ... Seahawks WR Golden Tate caught three passes for a career-high 105 yards.
Vikings 37, Packers 34
Adrian Peterson became the seventh running back to reach the 2,000-yard plateau and fellow Pro Bowler Blair Walsh kicked a 29-yard field goal as time expired to send host Minnesota into the postseason.