Sofi Stadium's thrilling debut came down to the final minute before the Rams' defense shut down any hopes for a Cowboys' Hail Mary victory.
The Rams had a lot to show off Sunday night -a new offensive coordinator, a new defensive coordinator and a new stadium.
From the first drive, it was clear the changes off of the field were effective, as Jared Goff and company started off hot. Three minutes into the game, the Rams were in the red zone where Goff connected with Malcolm Brown for Sofi Stadium's first touchdown.
The Cowboys were prepared. Veteran Ezekiel Elliott was a key factor for the Cowboys throughout the night, receiving a 19 yard dime from Dak Prescott early in the second quarter, to tie things up.
A couple of Los Angeles field goals put the Rams up six, before another Elliott touchdown finished the first half, 14-13 Dallas.
Halfway into the third quarter, Brown found the end zone again, this time from two yards out, putting the Rams back in control, 20-14. Dallas's staunch defense led to a costly Goff interception resulting in a 33 yard field goal for the Cowboys late in the third quarter.
Defense dominated the final 15 minutes, resulting in a scoreless fourth quarter. The Cowboys' hopes for a last minute victory were stalled by an Aaron Donald pass break up, securing the 20-17 victory for the Rams.
Goff finished 20/31 for 269 yards and one interception, Brown ground out 18 carries for 79 yards and two touchdowns, while Robert Woods' six receptions for 105 yards rounded out Los Angeles' offense.
For Dallas, Prescott completed 25/39 for 244 yards and one touchdown, Elliott had 22 carries and three receptions for a total of 127 yards and a pair of touchdowns. Amari Cooper lead all receivers with ten receptions for 81 yards.