Sports

Romo, Cowboys erase 21-point deficit, stun Rams on road with 34-31 win

  • Dallas Cowboys quarterback Tony Romo scrambles during the second quarter of an NFL football game against the St. Louis Rams, Sunday, Sept. 21, 2014, in St. Louis. (AP Photo/Scott Kane)

    Dallas Cowboys quarterback Tony Romo scrambles during the second quarter of an NFL football game against the St. Louis Rams, Sunday, Sept. 21, 2014, in St. Louis. (AP Photo/Scott Kane)  (The Associated Press)

  • Dallas Cowboys quarterback Tony Romo watches as he throws a pass that was intercepted by St. Louis Rams cornerback Janoris Jenkins and ran 25-yards by Jenkins for a touchdown during the second quarter of an NFL football game Sunday, Sept. 21, 2014, in St. Louis. (AP Photo/Tom Gannam)

    Dallas Cowboys quarterback Tony Romo watches as he throws a pass that was intercepted by St. Louis Rams cornerback Janoris Jenkins and ran 25-yards by Jenkins for a touchdown during the second quarter of an NFL football game Sunday, Sept. 21, 2014, in St. Louis. (AP Photo/Tom Gannam)  (The Associated Press)

  • Dallas Cowboys running back DeMarco Murray, center, is stopped by St. Louis Rams defensive tackle Ethan Westbrooks, left, and defensive end Eugene Sims during the second quarter of an NFL football game Sunday, Sept. 21, 2014, in St. Louis. (AP Photo/Tom Gannam)

    Dallas Cowboys running back DeMarco Murray, center, is stopped by St. Louis Rams defensive tackle Ethan Westbrooks, left, and defensive end Eugene Sims during the second quarter of an NFL football game Sunday, Sept. 21, 2014, in St. Louis. (AP Photo/Tom Gannam)  (The Associated Press)

Tony Romo matched the biggest comeback in Dallas Cowboys history.

Terrance Williams scored the go-ahead touchdown late in the fourth quarter, and Bruce Carter returned an interception 25 yards for a TD on the next snap, capping the Cowboys' comeback from a 21-0 deficit to stun the St. Louis Rams 34-31 on Sunday.

DeMarco Murray's 1-yard run late in the first half began the rally for Dallas (2-1). Dez Bryant caught a 68-yard scoring pass in the third quarter, and Carter's first career interception and touchdown came not long after he was evaluated for concussion-like symptoms on the bench.

Dallas also rallied from a 21-point deficit in overtime in 1984 against New Orleans and 1999 against Washington. It tied the second-largest lead blown by the Rams, who slowed Murray but got burned everywhere else.

St. Louis is 0-2 at home and was whipped 34-6 by Minnesota in the opener.

Murray had 100 yards on 24 carries and lost a fumble for the fourth straight game dating to last season, even after switching from carrying the ball on his left side to the right. He set a franchise record with 253 yards against St. Louis in 2011 and had 175 yards last season.

Janoris Jenkins' 25-yard interception return, the fifth defensive touchdown in his three seasons, put the Rams (1-2) up 21-0 with 6:06 to go in the first half.

Austin Davis got his second straight start in place of Shaun Hill (quadriceps). He cut the Cowboys' lead to three points on a 4-yard pass to Austin Pettis with 2:36 to go, but Morris Claiborne's interception clinched it with 1:02 left.

Romo was 4 for 5 for 40 yards and scrambled 16 yards on third-and-13 on the go-ahead drive. His second-half play overshadowed a third costly INT of the year.

Penalties and a turnover late in the first half helped the Cowboys close the gap.

Murray's 1-yard run came a play after rookie Lamarcus Joyner's interference call in the end zone. Henry Melton recovered a fumble on Scott Wells' flubbed shotgun snap, and a roughing-the-passer call on Eugene Sims got Dallas closer for Dan Bailey's 29-yard field goal.

Bailey set a franchise record with his 28th in a row on a 40-yarder in the third quarter. Chris Boniol hit 27 straight in 1996.

The biggest deficit overcome by a Rams opponent is 23 points by the Packers in 1982, and Denver had a 21-point rally in 1982.