BALTIMORE - Sunday's win was a costly one for the Ravens as top cornerback Lardarius Webb (knee) and future Hall of Fame middle linebacker Ray Lewis (triceps) both suffered potential season-ending injuries.
Webb was injured during the first half while covering Cowboys wide receiver Dez Bryant. He fell to the ground, immediately grasping at his left knee, and was unable to put weight on the leg as he was helped to the locker room.
"Lardarius Webb does not look good right now," Baltimore coach John Harbaugh said afterward. "It's a potential ACL. We've got a problem there. We don't know for sure, but that's what it looks like right now."
Webb tore the ACL in his right knee late in his rookie season in 2009, but has emerged as one of the NFL's top cornerbacks during the three seasons that have followed.
He signed a 5-year, $50 million contract extension with the Ravens in April.
A season-ending injury to Webb would be a big blow to a pass defense that was ranked 23rd in the NFL entering Sunday.
With Webb sidelined, second-year player Jimmy Smith took his place with the first-team defense. Veteran Corey Graham and second-year player Chykie Brown also saw action at cornerback following Webb's injury.
Dallas quarterback Tony Romo finished 25-of-36 for 261 yards with two touchdowns and one interception. He was 16-of-24 for 180 yards with two scores and no interceptions in the second half.
Wide receiver Dez Bryant had 13 catches for 95 yards and two touchdowns, but averaged just more than seven yards per catch. Miles Austin was limited to 31 yards on two catches and Kevin Ogletree was held without a catch.
"Jimmy played really, and I thought Cary [Williams] played really well," Harbaugh said. "Corey Graham stepped in and played really well - that's why we brought him here - and then Chykie. We went deep at that position. I thought all of the guys played really well, and they're going to have to."
Webb and Lewis will both undergo MRI's today to determine the extent of their injuries.
Lewis was hurt during the latter part of the fourth quarter and it's feared that he suffered a torn triceps.
Lewis leads the Ravens with 57 tackles. He had a team-high 14 Sunday.
He would be replaced in the starting lineup by Dannell Ellerbe.
Neither Webb nor Lewis were available for comment after the game.
CENTURY MARK FOR RICE: Running back Ray Rice had 106 total yards and two touchdowns Sunday.
He had 16 carries for 63 yards and two scores as well as one catch for an additional 43 yards.
It was his 35th time eclipsing 100 yards from scrimmage since the start of the 2009 season, the most of any player during that span.
His 1-yard scoring run that tied the game at 10 midway through the second quarter was set up by a 43-yard catch-and-run earlier in the drive. He had another 1-yard scoring run in the fourth quarter.
JONES TIES RECORD: Jacoby Jones' 108-yard kickoff return for a touchdown during the third quarter pushed Baltimore's lead to 24-13 while tying an NFL-record in the process.
"When I caught it, I found Anthony Allen and he said, 'Follow me,'" Jones recalled. "He was my eyes. He led me to daylight."
The return is tied for the longest play in NFL history and established a new mark for the longest play in Ravens history.
Safety Ed Reed's 107-yard interception return for a score against the Philadelphia Eagles in 2008 stood as the previous team record.
'GAME-WRECKER' LIMITED: Earlier in the week, Harbaugh referred to Cowboys outside linebacker DeMarcus Ware as "a game-wrecker."
Arguably the NFL's top pass rusher, Ware figured to pose a serious challenge to a Baltimore offensive line that had yielded four sacks each of the last two weeks.
He did have a sack Sunday, although it was more of a coverage sack, but was otherwise held in check by Ravens left tackle Michael Oher. The sack was Ware's lone tackle Sunday.
INACTIVES: Offensive lineman Ramon Harewood and kick returner Deonte Thompson were among the Ravens' inactives Sunday.
Harewood started at left guard each of the first five games, but had struggled in recent weeks.
Veteran Bobbie Williams started in his place.
Thompson was Baltimore's primary kick returner for the first five games.
Cornerback Asa Jackson, lineman Jah Reid, linebacker Sergio Kindle and defensive linemen Bryan Hall and DeAngelo Tyson were also inactive.
Rookie safety Christian Thompson was active Sunday after being inactive last week. Tight end Billy Bajema was also active for the first time this year.