ARLINGTON, Texas -- Tony Romo didn't need much time -- or his top three pass-catchers -- to show he's ready for the regular season.
"Tony is an outstanding player and he's done it with a lot of different kinds of guys," coach Jason Garrett said. "It's nice to see him play well and play in a good rhythm with the younger guys."
"I do know I've been preparing for New York for a while," Romo said. "We'll just get back to studying on them and take it from there."
Harris finished with three catches for 118 yards and Kevin Ogletree, going into his fourth season, caught five passes for 75 yards.
"Injuries provide opportunity. With Dez and Miles being out, those guys have gotten more of an opportunity than they would have otherwise," Garrett said. "I think they've taken advantage of it."
Harris, a sixth-round pick last year now in the mix to be the No. 3 receiver after Austin and Bryant, got behind the Rams' secondary for a 61-yard TD that put Dallas up 10-0 less than 9 minutes into the game.
Breer: Disappointment in Big D
"Jenks lost his footing on the first ball down the sideline. We had a communication problem on the long TD pass. Those things I'm not concerned about because they're correctable," Fisher said. "We gave up way too much through the air."
On the Cowboys' opening 13-play drive, Murray converted third-and-10 when Romo scrambled out of trouble and dumped the pass to the running back, who made a quick move around two defenders. But Dallas had to settle for Dan Bailey's 38-yard field goal after Ogletree let a ball go through his hands on a third-and-6 play.
The Rams had only 114 total yards before halftime, a week after scoring TDs on their first two drives against Kansas City in a 31-17 win. St. Louis lost 38-3 at Indianapolis in its preseason opener.
"Today was probably our worst performance in the three games. ... We're still pretty vanilla," Bradford said. "I don't think it was anything major. I think it's just getting some of the smaller details cleaned up."
St. Louis plays at home against Baltimore in its final preseason game Thursday, when Fisher plans to use Jackson and the rest of his starters extensively.
Even with a fake punt for a 30-yard gain and an offside penalty that got the Rams inside the 10, they didn't score when Bradford had consecutive incompletions from the 5. That included fourth down when Fisher opted against a chip-shot field goal for Zuerlein, who made kicks of 55 and 52 yards.
Bailey kicked a 31-yard field goal at the end of the first half for a 20-6 lead after Harris had a 19-yard catch and Ogletree a 15-yarder.
Copyright 2012 The Associated Press