The 49ers' defense won on early downs to open the game. They forced the Rams in a 3rd & 9, 3rd & 12, and 3rd & 6. Odell Beckham Jr. made a fantastic catch with Emmanuel Moseley draped all over him.
On the next third down, Dontae Johnson found himself on Cooper Kupp. As you might imagine, that didn’t end in Johnson’s favor. Kupp gained 46 yards on the play.
An Arik Armstead and Arden Key sack on the final third down of the drive forced the Rams to kick a field goal to make the score 3-0.