LANDOVER, Md. — RG3 and the Washington Redskins are NFC East champions.

Robert Griffin III ran for a touchdown, and fellow rookie Alfred Morris rushed for 200 yards and three scores Sunday night as the Redskins won their first division title in 13 years by beating the Dallas Cowboys 28-18.

The Redskins are 10-6 and will host the Seattle Seahawks next Sunday, having won seven straight since their bye week. Washington is the first NFL team to rally from 3-6 and make the postseason since the Jacksonville Jaguars in 1996.

The Redskins would have been out of the postseason with a loss. Instead, the Cowboys will miss the playoffs for the third straight year. Dallas finished 8-8, stumbling in a do-or-die, end-of-regular-season game for the third time in five years.

Colts 28, Texans 16

INDIANAPOLIS — The Colts made Chuck Pagano a winner in his return to the sideline.

Andrew Luck threw for two touchdowns for the Colts (11-5) and Deji Karim swung the game with a 101-yard kickoff return in the third quarter. It was Pagano’s first game back as coach since starting treatment for leukemia Sept. 26.

Slumping Houston (12-4) is the third seed and will host Cincinnati. The Texans lost three of their last four games, and J.J. Watt failed to break Michael Strahan’s single-season sacks record.

Bengals 23, Ravens 17

CINCINNATI — Carlos Dunlap returned an interception 14 yards for a touchdown in the fourth quarter.

The Ravens (10-6) had already clinched their second straight AFC North title, and they will open the playoffs at home against Indianapolis, which defeated Houston on Sunday.

The Bengals (10-6) are at Houston next Saturday.

The Ravens let quarterback Joe Flacco and running back Ray Rice play only two series. Bengals quarterback Andy Dalton and receiver A.J. Green sat out the second half.

Broncos 38, Chiefs 3

DENVER — Peyton Manning threw for 304 yards and three touchdowns to lift Denver into the No. 1 seed for the AFC playoffs.

Manning finished the season with 4,659 yards, 41 short of his career high. He finished with 37 touchdown passes, and none will be more memorable than the last two — circus catches by Eric Decker and Demaryius Thomas that turned the game into a blowout.

Denver (13-3) won its 11th straight and leaped past Houston for the top seed after the Texans lost to Indianapolis 28-16 earlier in the day.

The Chiefs gained only 119 yards all day and finished their season 2-14. They will get the top pick in April’s draft.

49ers 27, Cardinals 13

SAN FRANCISCO — Michael Crabtree caught touchdown passes of 49 and 7 yards as the 49ers won a second straight NFC West title.

Colin Kaepernick threw for a career-best 276 yards and two TDs as the Niners (11-4-1) earned a No. 2 seed thanks to Green Bay’s loss to Minnesota.

Frank Gore ran for a 2-yard touchdown early in the fourth quarter for his franchise-best 51st touchdown rushing.

Seahawks 20, Rams 13

SEATTLE — Russell Wilson tied Peyton Manning’s record for most touchdown passes by a rookie with 26, and his 1-yard TD run with 1:39 left allowed Seattle to finish as the only unbeaten team at home.

Seattle (11-5) entered the day with hopes of still winning the NFC West and getting a home playoff game, but those dreams were dashed when San Francisco beat Arizona. Seattle will be the No. 5 seed and play at Washington next weekend.

Patriots 28, Dolphins 0

FOXBOROUGH, Mass. — Tom Brady threw two touchdown passes and New England earned a playoff bye.

Stevan Ridley ran for two touchdowns as the Patriots used a ball-control offense and a defense that racked up a season-high seven sacks.

The Patriots (12-4) led 21-0 at halftime on Brady’s 9-yard touchdown pass to Wes Welker and Ridley’s runs of 1 and 2 yards, capping drives lasting 14 and 13 plays. They ended the scoring on Brady’s 23-yard scoring pass to Rob Gronkowski, who missed the previous five games after breaking his left forearm.

Bucs 22, Falcons 17

ATLANTA — The Falcons couldn’t follow through with their plan to gain momentum for the playoffs as Josh Freeman threw a touchdown pass to Mike Williams and Doug Martin ran for 141 yards.

The Falcons (13-3) had little to play for as they already have home-field advantage through the NFC playoffs. Coach Mike Smith said he wanted to “finish the regular season the right way,” and he stayed with his starters through the game.

The danger to Smith’s strategy was losing a top starter to an injury. Defensive end John Abraham, Atlanta’s best pass rusher, left with an apparent left ankle injury in the fourth quarter. Cornerback Dunta Robinson suffered a head injury in the first quarter and did not return.

Bears 26, Lions 24

DETROIT — Jay Cutler threw for 257 yards and a touchdown and helped seal the game with a late scramble.

Chicago (10-6) needed a Minnesota loss to Green Bay to reach the postseason, but didn’t get it.

The Lions (4-12) lost their last eight games and turned the ball over four times in the finale. Calvin Johnson fell short in his attempt to become the first player with 2,000 yards receiving in a season.

Giants 42, Eagles 7

EAST RUTHERFORD, N.J. — There will be no Super Bowl repeat for the Giants. Not even a playoff berth despite Eli Manning’s career-high five touchdown passes.

The Giants (9-7) were eliminated from postseason contention minutes after routing the Eagles (4-12). Chicago’s win over Detroit ended New York’s long-shot playoff chances.

The loss means that it will be seven straight seasons that the Super Bowl champion has failed to win a playoff game the following year.

Bills 28, Jets 9

ORCHARD PARK, N.Y. — C.J. Spiller scored on a 66-yard catch and run in helping underachieving Buffalo, while Jets quarterback Mark Sanchez had two more turnovers.

Safety Bryan Scott also returned an interception 20 yards for a touchdown for the Bills (6-10), who snapped a three-game skid. Both AFC East rivals had already been eliminated from playoff contention.

Titans 38, Jaguars 20

NASHVILLE, Tenn. — Tennessee became the first NFL team with two players scoring twice on returns in closing out the season with two wins in its final three games.

Darius Reynaud scored on two punt returns and rookie linebacker Zach Brown returned two interceptions for touchdowns.

Panthers 44, Saints 38

NEW ORLEANS — Drew Brees made more NFL history, but so did the Saints’ porous defense in a loss to Carolina.

DeAngelo Williams rushed for 210 yards, including touchdown runs of 54 and 12 yards, for Carolina (7-9), which closed the season with four straight wins. His 65-yard gain set up the first of three 1-yard scoring runs by Mike Tolbert.

Brees passed for 396 yards, giving him 5,177 this season. That makes him the first player to eclipse 5,000 yards three times. His four TD passes gave him 43 in 2012, and he’s the first player with 40 TD passes in consecutive seasons.

The Saints (7-9) also gave up 530 yards, raising their season total to 7,042 to break the record of 6,793 allowed by the 1981 Baltimore Colts.

Chargers 24, Raiders 21

SAN DIEGO — Micheal Spurlock returned the opening kickoff 99 yards for a touchdown on wet, gloomy day in what’s expected to be Norv Turner’s final game as Chargers coach.

Turner and general manager A.J. Smith are expected to be fired because the Chargers (7-9) missed the playoffs for the third straight season. The Raiders finished 4-12.