There is also his questionable decision to pass up a potential game-tying field goal for a failed gamble on fourth down early in the fourth quarter.
The Los Angeles Rams ran through their tunnel and into empty SoFi Stadium for the very first time amid sparkling fireworks, flashing lights and the prerecorded cheers of fans watching from home.
"It was a huge chance", Prescott said.
"I thought our offence slowed up in the second half, but the defence picked up the slack", McVay said. "I think he has his arm out there, but I don't see him forcibly push him off". We had a couple costly penalties, that we have to be able to avoid moving forward, but overall, I liked the way we came out. "So, the timing of a number of things we did by position needs to improve".
Gallup was called for offensive pass interference.
"If they hadn't have called that, I would have been really upset, " Ramsey said.
Van Jefferson's first career reception was a attractive 31-yard grab in the second quarter, but it was the promising Rams rookie's only catch.
The Cowboys played from behind nearly all of the first half because they couldn't defend the screen pass.
It was the first game of the post-Todd Gurley era for the Rams.
Most encouragingly, the Rams stopped Dallas on nine of its 12 third downs and twice on fourth down, improving in an area that caused ample concern a year ago. The Cowboys were among the best in both categories last season.
So before we blame this or that or Aaron Donald, let's just look at third downs. Erving and Jarwin received knee injuries.
Rookie kicker Samuel Sloman put his first career field goal attempt off the left upright from 29 yards out, but he recovered to hit two field goals for the Rams. Fellow defensive linemen Aldon Smith and Antwaun Woods stood next to him with hands on his shoulders, as did a staff member. "It's not the way we wanted to start, but the guys battled". "But I had told them my mind was already made up and I felt this way. Don't do it unless your heart is there like mine was".